8678780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 20127744

約数和(自身を除く): 11448964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 383, 412, 515, 766, 1030, 1133, 1532, 1915, 2060, 2266, 3830, 4213, 4532, 5665, 7660, 8426, 11330, 16852, 21065, 22660, 39449, 42130, 78898, 84260, 157796, 197245, 394490, 433939, 788980, 867878, 1735756, 2169695, 4339390, 8678780]

約数ペア:

[(1, 8678780), (2, 4339390), (4, 2169695), (5, 1735756), (10, 867878), (11, 788980), (20, 433939), (22, 394490), (44, 197245), (55, 157796), (103, 84260), (110, 78898), (206, 42130), (220, 39449), (383, 22660), (412, 21065), (515, 16852), (766, 11330), (1030, 8426), (1133, 7660), (1532, 5665), (1915, 4532), (2060, 4213), (2266, 3830)]