13478920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2$

素因数の和:84

約数の個数: 144

約数和(自身を含む): 39716460

約数和(自身を除く): 26237540

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 49, 52, 56, 65, 70, 91, 92, 98, 104, 115, 130, 140, 161, 182, 184, 196, 230, 245, 260, 280, 299, 322, 364, 392, 455, 460, 490, 520, 529, 598, 637, 644, 728, 805, 910, 920, 980, 1058, 1127, 1196, 1274, 1288, 1495, 1610, 1820, 1960, 2093, 2116, 2254, 2392, 2548, 2645, 2990, 3185, 3220, 3640, 3703, 4186, 4232, 4508, 5096, 5290, 5635, 5980, 6370, 6440, 6877, 7406, 8372, 9016, 10465, 10580, 11270, 11960, 12740, 13754, 14651, 14812, 16744, 18515, 20930, 21160, 22540, 25480, 25921, 27508, 29302, 29624, 34385, 37030, 41860, 45080, 48139, 51842, 55016, 58604, 68770, 73255, 74060, 83720, 96278, 103684, 117208, 129605, 137540, 146510, 148120, 192556, 207368, 240695, 259210, 275080, 293020, 336973, 385112, 481390, 518420, 586040, 673946, 962780, 1036840, 1347892, 1684865, 1925560, 2695784, 3369730, 6739460, 13478920]

約数ペア:

[(1, 13478920), (2, 6739460), (4, 3369730), (5, 2695784), (7, 1925560), (8, 1684865), (10, 1347892), (13, 1036840), (14, 962780), (20, 673946), (23, 586040), (26, 518420), (28, 481390), (35, 385112), (40, 336973), (46, 293020), (49, 275080), (52, 259210), (56, 240695), (65, 207368), (70, 192556), (91, 148120), (92, 146510), (98, 137540), (104, 129605), (115, 117208), (130, 103684), (140, 96278), (161, 83720), (182, 74060), (184, 73255), (196, 68770), (230, 58604), (245, 55016), (260, 51842), (280, 48139), (299, 45080), (322, 41860), (364, 37030), (392, 34385), (455, 29624), (460, 29302), (490, 27508), (520, 25921), (529, 25480), (598, 22540), (637, 21160), (644, 20930), (728, 18515), (805, 16744), (910, 14812), (920, 14651), (980, 13754), (1058, 12740), (1127, 11960), (1196, 11270), (1274, 10580), (1288, 10465), (1495, 9016), (1610, 8372), (1820, 7406), (1960, 6877), (2093, 6440), (2116, 6370), (2254, 5980), (2392, 5635), (2548, 5290), (2645, 5096), (2990, 4508), (3185, 4232), (3220, 4186), (3640, 3703)]