8415880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 21358080

約数和(自身を除く): 12942200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 617, 620, 682, 1234, 1240, 1364, 1705, 2468, 2728, 3085, 3410, 4936, 6170, 6787, 6820, 12340, 13574, 13640, 19127, 24680, 27148, 33935, 38254, 54296, 67870, 76508, 95635, 135740, 153016, 191270, 210397, 271480, 382540, 420794, 765080, 841588, 1051985, 1683176, 2103970, 4207940, 8415880]

約数ペア:

[(1, 8415880), (2, 4207940), (4, 2103970), (5, 1683176), (8, 1051985), (10, 841588), (11, 765080), (20, 420794), (22, 382540), (31, 271480), (40, 210397), (44, 191270), (55, 153016), (62, 135740), (88, 95635), (110, 76508), (124, 67870), (155, 54296), (220, 38254), (248, 33935), (310, 27148), (341, 24680), (440, 19127), (617, 13640), (620, 13574), (682, 12340), (1234, 6820), (1240, 6787), (1364, 6170), (1705, 4936), (2468, 3410), (2728, 3085)]