310420840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{991}}^1$

素因数の和:1234

約数の個数: 64

約数和(自身を含む): 719953920

約数和(自身を除く): 409533080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 191, 205, 328, 382, 410, 764, 820, 955, 991, 1528, 1640, 1910, 1982, 3820, 3964, 4955, 7640, 7831, 7928, 9910, 15662, 19820, 31324, 39155, 39640, 40631, 62648, 78310, 81262, 156620, 162524, 189281, 203155, 313240, 325048, 378562, 406310, 757124, 812620, 946405, 1514248, 1625240, 1892810, 3785620, 7571240, 7760521, 15521042, 31042084, 38802605, 62084168, 77605210, 155210420, 310420840]

約数ペア:

[(1, 310420840), (2, 155210420), (4, 77605210), (5, 62084168), (8, 38802605), (10, 31042084), (20, 15521042), (40, 7760521), (41, 7571240), (82, 3785620), (164, 1892810), (191, 1625240), (205, 1514248), (328, 946405), (382, 812620), (410, 757124), (764, 406310), (820, 378562), (955, 325048), (991, 313240), (1528, 203155), (1640, 189281), (1910, 162524), (1982, 156620), (3820, 81262), (3964, 78310), (4955, 62648), (7640, 40631), (7831, 39640), (7928, 39155), (9910, 31324), (15662, 19820)]