18020321620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{577}}^1$

素因数の和:870

約数の個数: 192

約数和(自身を含む): 46609920000

約数和(自身を除く): 28589598380

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 59, 70, 76, 95, 118, 133, 140, 190, 199, 236, 266, 295, 380, 398, 413, 532, 577, 590, 665, 796, 826, 995, 1121, 1154, 1180, 1330, 1393, 1652, 1990, 2065, 2242, 2308, 2660, 2786, 2885, 3781, 3980, 4039, 4130, 4484, 5572, 5605, 5770, 6965, 7562, 7847, 8078, 8260, 10963, 11210, 11540, 11741, 13930, 15124, 15694, 16156, 18905, 20195, 21926, 22420, 23482, 26467, 27860, 31388, 34043, 37810, 39235, 40390, 43852, 46964, 52934, 54815, 58705, 68086, 75620, 76741, 78470, 80780, 82187, 105868, 109630, 114823, 117410, 132335, 136172, 153482, 156940, 164374, 170215, 219260, 223079, 229646, 234820, 238301, 264670, 306964, 328748, 340430, 383705, 410935, 446158, 459292, 476602, 529340, 574115, 646817, 680860, 767410, 803761, 821870, 892316, 953204, 1115395, 1148230, 1191505, 1293634, 1534820, 1561553, 1607522, 1643740, 2181637, 2230790, 2296460, 2383010, 2587268, 3123106, 3215044, 3234085, 4018805, 4363274, 4461580, 4527719, 4766020, 6246212, 6468170, 6774557, 7807765, 8037610, 8726548, 9055438, 10908185, 12936340, 13549114, 15271459, 15615530, 16075220, 18110876, 21816370, 22638595, 27098228, 30542918, 31231060, 33872785, 43632740, 45277190, 47421899, 61085836, 67745570, 76357295, 90554380, 94843798, 128716583, 135491140, 152714590, 189687596, 237109495, 257433166, 305429180, 474218990, 514866332, 643582915, 901016081, 948437980, 1287165830, 1802032162, 2574331660, 3604064324, 4505080405, 9010160810, 18020321620]

約数ペア:

[(1, 18020321620), (2, 9010160810), (4, 4505080405), (5, 3604064324), (7, 2574331660), (10, 1802032162), (14, 1287165830), (19, 948437980), (20, 901016081), (28, 643582915), (35, 514866332), (38, 474218990), (59, 305429180), (70, 257433166), (76, 237109495), (95, 189687596), (118, 152714590), (133, 135491140), (140, 128716583), (190, 94843798), (199, 90554380), (236, 76357295), (266, 67745570), (295, 61085836), (380, 47421899), (398, 45277190), (413, 43632740), (532, 33872785), (577, 31231060), (590, 30542918), (665, 27098228), (796, 22638595), (826, 21816370), (995, 18110876), (1121, 16075220), (1154, 15615530), (1180, 15271459), (1330, 13549114), (1393, 12936340), (1652, 10908185), (1990, 9055438), (2065, 8726548), (2242, 8037610), (2308, 7807765), (2660, 6774557), (2786, 6468170), (2885, 6246212), (3781, 4766020), (3980, 4527719), (4039, 4461580), (4130, 4363274), (4484, 4018805), (5572, 3234085), (5605, 3215044), (5770, 3123106), (6965, 2587268), (7562, 2383010), (7847, 2296460), (8078, 2230790), (8260, 2181637), (10963, 1643740), (11210, 1607522), (11540, 1561553), (11741, 1534820), (13930, 1293634), (15124, 1191505), (15694, 1148230), (16156, 1115395), (18905, 953204), (20195, 892316), (21926, 821870), (22420, 803761), (23482, 767410), (26467, 680860), (27860, 646817), (31388, 574115), (34043, 529340), (37810, 476602), (39235, 459292), (40390, 446158), (43852, 410935), (46964, 383705), (52934, 340430), (54815, 328748), (58705, 306964), (68086, 264670), (75620, 238301), (76741, 234820), (78470, 229646), (80780, 223079), (82187, 219260), (105868, 170215), (109630, 164374), (114823, 156940), (117410, 153482), (132335, 136172)]