312541640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1949}}^1$

素因数の和:2190

約数の個数: 64

約数和(自身を含む): 744120000

約数和(自身を除く): 431578360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 211, 380, 422, 760, 844, 1055, 1688, 1949, 2110, 3898, 4009, 4220, 7796, 8018, 8440, 9745, 15592, 16036, 19490, 20045, 32072, 37031, 38980, 40090, 74062, 77960, 80180, 148124, 160360, 185155, 296248, 370310, 411239, 740620, 822478, 1481240, 1644956, 2056195, 3289912, 4112390, 7813541, 8224780, 15627082, 16449560, 31254164, 39067705, 62508328, 78135410, 156270820, 312541640]

約数ペア:

[(1, 312541640), (2, 156270820), (4, 78135410), (5, 62508328), (8, 39067705), (10, 31254164), (19, 16449560), (20, 15627082), (38, 8224780), (40, 7813541), (76, 4112390), (95, 3289912), (152, 2056195), (190, 1644956), (211, 1481240), (380, 822478), (422, 740620), (760, 411239), (844, 370310), (1055, 296248), (1688, 185155), (1949, 160360), (2110, 148124), (3898, 80180), (4009, 77960), (4220, 74062), (7796, 40090), (8018, 38980), (8440, 37031), (9745, 32072), (15592, 20045), (16036, 19490)]