20756360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{881}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 30046840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 881, 1178, 1240, 1762, 2356, 2945, 3524, 4405, 4712, 5890, 7048, 8810, 11780, 16739, 17620, 23560, 27311, 33478, 35240, 54622, 66956, 83695, 109244, 133912, 136555, 167390, 218488, 273110, 334780, 518909, 546220, 669560, 1037818, 1092440, 2075636, 2594545, 4151272, 5189090, 10378180, 20756360]

約数ペア:

[(1, 20756360), (2, 10378180), (4, 5189090), (5, 4151272), (8, 2594545), (10, 2075636), (19, 1092440), (20, 1037818), (31, 669560), (38, 546220), (40, 518909), (62, 334780), (76, 273110), (95, 218488), (124, 167390), (152, 136555), (155, 133912), (190, 109244), (248, 83695), (310, 66956), (380, 54622), (589, 35240), (620, 33478), (760, 27311), (881, 23560), (1178, 17620), (1240, 16739), (1762, 11780), (2356, 8810), (2945, 7048), (3524, 5890), (4405, 4712)]