64792360

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3299}}^1$

素因数の和:3801

約数の個数: 32

約数和(自身を含む): 146124000

約数和(自身を除く): 81331640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3299, 3928, 4910, 6598, 9820, 13196, 16495, 19640, 26392, 32990, 65980, 131960, 1619809, 3239618, 6479236, 8099045, 12958472, 16198090, 32396180, 64792360]

約数ペア:

[(1, 64792360), (2, 32396180), (4, 16198090), (5, 12958472), (8, 8099045), (10, 6479236), (20, 3239618), (40, 1619809), (491, 131960), (982, 65980), (1964, 32990), (2455, 26392), (3299, 19640), (3928, 16495), (4910, 13196), (6598, 9820)]