1291969640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{80147}}^1$

素因数の和:80202

約数の個数: 64

約数和(自身を含む): 3231567360

約数和(自身を除く): 1939597720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 80147, 160294, 320588, 400735, 641176, 801470, 1041911, 1602940, 2083822, 2484557, 3205880, 4167644, 4969114, 5209555, 8335288, 9938228, 10419110, 12422785, 19876456, 20838220, 24845570, 32299241, 41676440, 49691140, 64598482, 99382280, 129196964, 161496205, 258393928, 322992410, 645984820, 1291969640]

約数ペア:

[(1, 1291969640), (2, 645984820), (4, 322992410), (5, 258393928), (8, 161496205), (10, 129196964), (13, 99382280), (20, 64598482), (26, 49691140), (31, 41676440), (40, 32299241), (52, 24845570), (62, 20838220), (65, 19876456), (104, 12422785), (124, 10419110), (130, 9938228), (155, 8335288), (248, 5209555), (260, 4969114), (310, 4167644), (403, 3205880), (520, 2484557), (620, 2083822), (806, 1602940), (1240, 1041911), (1612, 801470), (2015, 641176), (3224, 400735), (4030, 320588), (8060, 160294), (16120, 80147)]