778872120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499277}}^1$

素因数の和:499304

約数の個数: 64

約数和(自身を含む): 2516361120

約数和(自身を除く): 1737489000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 499277, 998554, 1497831, 1997108, 2496385, 2995662, 3994216, 4992770, 5991324, 6490601, 7489155, 9985540, 11982648, 12981202, 14978310, 19471803, 19971080, 25962404, 29956620, 32453005, 38943606, 51924808, 59913240, 64906010, 77887212, 97359015, 129812020, 155774424, 194718030, 259624040, 389436060, 778872120]

約数ペア:

[(1, 778872120), (2, 389436060), (3, 259624040), (4, 194718030), (5, 155774424), (6, 129812020), (8, 97359015), (10, 77887212), (12, 64906010), (13, 59913240), (15, 51924808), (20, 38943606), (24, 32453005), (26, 29956620), (30, 25962404), (39, 19971080), (40, 19471803), (52, 14978310), (60, 12981202), (65, 11982648), (78, 9985540), (104, 7489155), (120, 6490601), (130, 5991324), (156, 4992770), (195, 3994216), (260, 2995662), (312, 2496385), (390, 1997108), (520, 1497831), (780, 998554), (1560, 499277)]