2605240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 6635520

約数和(自身を除く): 4030280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 191, 220, 248, 310, 341, 382, 440, 620, 682, 764, 955, 1240, 1364, 1528, 1705, 1910, 2101, 2728, 3410, 3820, 4202, 5921, 6820, 7640, 8404, 10505, 11842, 13640, 16808, 21010, 23684, 29605, 42020, 47368, 59210, 65131, 84040, 118420, 130262, 236840, 260524, 325655, 521048, 651310, 1302620, 2605240]

約数ペア:

[(1, 2605240), (2, 1302620), (4, 651310), (5, 521048), (8, 325655), (10, 260524), (11, 236840), (20, 130262), (22, 118420), (31, 84040), (40, 65131), (44, 59210), (55, 47368), (62, 42020), (88, 29605), (110, 23684), (124, 21010), (155, 16808), (191, 13640), (220, 11842), (248, 10505), (310, 8404), (341, 7640), (382, 6820), (440, 5921), (620, 4202), (682, 3820), (764, 3410), (955, 2728), (1240, 2101), (1364, 1910), (1528, 1705)]