8743240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 22187520

約数和(自身を除く): 13444280

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, 620, 641, 682, 1240, 1282, 1364, 1705, 2564, 2728, 3205, 3410, 5128, 6410, 6820, 7051, 12820, 13640, 14102, 19871, 25640, 28204, 35255, 39742, 56408, 70510, 79484, 99355, 141020, 158968, 198710, 218581, 282040, 397420, 437162, 794840, 874324, 1092905, 1748648, 2185810, 4371620, 8743240]

約数ペア:

[(1, 8743240), (2, 4371620), (4, 2185810), (5, 1748648), (8, 1092905), (10, 874324), (11, 794840), (20, 437162), (22, 397420), (31, 282040), (40, 218581), (44, 198710), (55, 158968), (62, 141020), (88, 99355), (110, 79484), (124, 70510), (155, 56408), (220, 39742), (248, 35255), (310, 28204), (341, 25640), (440, 19871), (620, 14102), (641, 13640), (682, 12820), (1240, 7051), (1282, 6820), (1364, 6410), (1705, 5128), (2564, 3410), (2728, 3205)]