25578520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{953}}^1$

素因数の和:1036

約数の個数: 64

約数和(自身を含む): 63879840

約数和(自身を除く): 38301320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 953, 1220, 1342, 1906, 2440, 2684, 3355, 3812, 4765, 5368, 6710, 7624, 9530, 10483, 13420, 19060, 20966, 26840, 38120, 41932, 52415, 58133, 83864, 104830, 116266, 209660, 232532, 290665, 419320, 465064, 581330, 639463, 1162660, 1278926, 2325320, 2557852, 3197315, 5115704, 6394630, 12789260, 25578520]

約数ペア:

[(1, 25578520), (2, 12789260), (4, 6394630), (5, 5115704), (8, 3197315), (10, 2557852), (11, 2325320), (20, 1278926), (22, 1162660), (40, 639463), (44, 581330), (55, 465064), (61, 419320), (88, 290665), (110, 232532), (122, 209660), (220, 116266), (244, 104830), (305, 83864), (440, 58133), (488, 52415), (610, 41932), (671, 38120), (953, 26840), (1220, 20966), (1342, 19060), (1906, 13420), (2440, 10483), (2684, 9530), (3355, 7624), (3812, 6710), (4765, 5368)]