20347218640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1777}}^1$

素因数の和:1954

約数の個数: 240

約数和(自身を含む): 57908293632

約数和(自身を除く): 37561074992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 127, 140, 161, 184, 196, 230, 245, 254, 280, 322, 368, 392, 460, 490, 508, 560, 635, 644, 784, 805, 889, 920, 980, 1016, 1127, 1270, 1288, 1610, 1777, 1778, 1840, 1960, 2032, 2254, 2540, 2576, 2921, 3220, 3554, 3556, 3920, 4445, 4508, 5080, 5635, 5842, 6223, 6440, 7108, 7112, 8885, 8890, 9016, 10160, 11270, 11684, 12439, 12446, 12880, 14216, 14224, 14605, 17770, 17780, 18032, 20447, 22540, 23368, 24878, 24892, 28432, 29210, 31115, 35540, 35560, 40871, 40894, 45080, 46736, 49756, 49784, 58420, 62195, 62230, 71080, 71120, 81742, 81788, 87073, 90160, 99512, 99568, 102235, 116840, 124390, 124460, 142160, 143129, 163484, 163576, 174146, 199024, 204355, 204470, 225679, 233680, 248780, 248920, 286097, 286258, 326968, 327152, 348292, 408710, 408940, 435365, 451358, 497560, 497840, 572194, 572516, 653936, 696584, 715645, 817420, 817880, 870730, 902716, 995120, 1128395, 1144388, 1145032, 1393168, 1430485, 1431290, 1579753, 1634840, 1635760, 1741460, 1805432, 2002679, 2256790, 2288776, 2290064, 2860970, 2862580, 3159506, 3269680, 3482920, 3610864, 4005358, 4513580, 4577552, 5190617, 5721940, 5725160, 6319012, 6965840, 7898765, 8010716, 9027160, 10013395, 10381234, 11058271, 11443880, 11450320, 12638024, 15797530, 16021432, 18054320, 20026790, 20762468, 22116542, 22887760, 25276048, 25953085, 31595060, 32042864, 36334319, 40053580, 41524936, 44233084, 51906170, 55291355, 63190120, 72668638, 80107160, 83049872, 88466168, 103812340, 110582710, 126380240, 145337276, 160214320, 176932336, 181671595, 207624680, 221165420, 254340233, 290674552, 363343190, 415249360, 442330840, 508680466, 581349104, 726686380, 884661680, 1017360932, 1271701165, 1453372760, 2034721864, 2543402330, 2906745520, 4069443728, 5086804660, 10173609320, 20347218640]

約数ペア:

[(1, 20347218640), (2, 10173609320), (4, 5086804660), (5, 4069443728), (7, 2906745520), (8, 2543402330), (10, 2034721864), (14, 1453372760), (16, 1271701165), (20, 1017360932), (23, 884661680), (28, 726686380), (35, 581349104), (40, 508680466), (46, 442330840), (49, 415249360), (56, 363343190), (70, 290674552), (80, 254340233), (92, 221165420), (98, 207624680), (112, 181671595), (115, 176932336), (127, 160214320), (140, 145337276), (161, 126380240), (184, 110582710), (196, 103812340), (230, 88466168), (245, 83049872), (254, 80107160), (280, 72668638), (322, 63190120), (368, 55291355), (392, 51906170), (460, 44233084), (490, 41524936), (508, 40053580), (560, 36334319), (635, 32042864), (644, 31595060), (784, 25953085), (805, 25276048), (889, 22887760), (920, 22116542), (980, 20762468), (1016, 20026790), (1127, 18054320), (1270, 16021432), (1288, 15797530), (1610, 12638024), (1777, 11450320), (1778, 11443880), (1840, 11058271), (1960, 10381234), (2032, 10013395), (2254, 9027160), (2540, 8010716), (2576, 7898765), (2921, 6965840), (3220, 6319012), (3554, 5725160), (3556, 5721940), (3920, 5190617), (4445, 4577552), (4508, 4513580), (5080, 4005358), (5635, 3610864), (5842, 3482920), (6223, 3269680), (6440, 3159506), (7108, 2862580), (7112, 2860970), (8885, 2290064), (8890, 2288776), (9016, 2256790), (10160, 2002679), (11270, 1805432), (11684, 1741460), (12439, 1635760), (12446, 1634840), (12880, 1579753), (14216, 1431290), (14224, 1430485), (14605, 1393168), (17770, 1145032), (17780, 1144388), (18032, 1128395), (20447, 995120), (22540, 902716), (23368, 870730), (24878, 817880), (24892, 817420), (28432, 715645), (29210, 696584), (31115, 653936), (35540, 572516), (35560, 572194), (40871, 497840), (40894, 497560), (45080, 451358), (46736, 435365), (49756, 408940), (49784, 408710), (58420, 348292), (62195, 327152), (62230, 326968), (71080, 286258), (71120, 286097), (81742, 248920), (81788, 248780), (87073, 233680), (90160, 225679), (99512, 204470), (99568, 204355), (102235, 199024), (116840, 174146), (124390, 163576), (124460, 163484), (142160, 143129)]