1780493680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{102563}}^1$

素因数の和:102614

約数の個数: 80

約数和(自身を含む): 4883687424

約数和(自身を除く): 3103193744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 102563, 205126, 410252, 512815, 717941, 820504, 1025630, 1435882, 1641008, 2051260, 2871764, 3179453, 3589705, 4102520, 5743528, 6358906, 7179410, 8205040, 11487056, 12717812, 14358820, 15897265, 22256171, 25435624, 28717640, 31794530, 44512342, 50871248, 57435280, 63589060, 89024684, 111280855, 127178120, 178049368, 222561710, 254356240, 356098736, 445123420, 890246840, 1780493680]

約数ペア:

[(1, 1780493680), (2, 890246840), (4, 445123420), (5, 356098736), (7, 254356240), (8, 222561710), (10, 178049368), (14, 127178120), (16, 111280855), (20, 89024684), (28, 63589060), (31, 57435280), (35, 50871248), (40, 44512342), (56, 31794530), (62, 28717640), (70, 25435624), (80, 22256171), (112, 15897265), (124, 14358820), (140, 12717812), (155, 11487056), (217, 8205040), (248, 7179410), (280, 6358906), (310, 5743528), (434, 4102520), (496, 3589705), (560, 3179453), (620, 2871764), (868, 2051260), (1085, 1641008), (1240, 1435882), (1736, 1025630), (2170, 820504), (2480, 717941), (3472, 512815), (4340, 410252), (8680, 205126), (17360, 102563)]