866965840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26891}}^1$

素因数の和:26948

約数の個数: 80

約数和(自身を含む): 2240856576

約数和(自身を除く): 1373890736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 26891, 32240, 53782, 107564, 134455, 215128, 268910, 349583, 430256, 537820, 699166, 833621, 1075640, 1398332, 1667242, 1747915, 2151280, 2796664, 3334484, 3495830, 4168105, 5593328, 6668968, 6991660, 8336210, 10837073, 13337936, 13983320, 16672420, 21674146, 27966640, 33344840, 43348292, 54185365, 66689680, 86696584, 108370730, 173393168, 216741460, 433482920, 866965840]

約数ペア:

[(1, 866965840), (2, 433482920), (4, 216741460), (5, 173393168), (8, 108370730), (10, 86696584), (13, 66689680), (16, 54185365), (20, 43348292), (26, 33344840), (31, 27966640), (40, 21674146), (52, 16672420), (62, 13983320), (65, 13337936), (80, 10837073), (104, 8336210), (124, 6991660), (130, 6668968), (155, 5593328), (208, 4168105), (248, 3495830), (260, 3334484), (310, 2796664), (403, 2151280), (496, 1747915), (520, 1667242), (620, 1398332), (806, 1075640), (1040, 833621), (1240, 699166), (1612, 537820), (2015, 430256), (2480, 349583), (3224, 268910), (4030, 215128), (6448, 134455), (8060, 107564), (16120, 53782), (26891, 32240)]