78540540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{100693}}^1$

素因数の和:100718

約数の個数: 48

約数和(自身を含む): 236832288

約数和(自身を除く): 158291748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 100693, 201386, 302079, 402772, 503465, 604158, 1006930, 1208316, 1309009, 1510395, 2013860, 2618018, 3020790, 3927027, 5236036, 6041580, 6545045, 7854054, 13090090, 15708108, 19635135, 26180180, 39270270, 78540540]

約数ペア:

[(1, 78540540), (2, 39270270), (3, 26180180), (4, 19635135), (5, 15708108), (6, 13090090), (10, 7854054), (12, 6545045), (13, 6041580), (15, 5236036), (20, 3927027), (26, 3020790), (30, 2618018), (39, 2013860), (52, 1510395), (60, 1309009), (65, 1208316), (78, 1006930), (130, 604158), (156, 503465), (195, 402772), (260, 302079), (390, 201386), (780, 100693)]