79404020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1439}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 174182400

約数和(自身を除く): 94778380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 445, 620, 890, 1439, 1780, 2759, 2878, 5518, 5756, 7195, 11036, 13795, 14390, 27590, 28780, 44609, 55180, 89218, 128071, 178436, 223045, 256142, 446090, 512284, 640355, 892180, 1280710, 2561420, 3970201, 7940402, 15880804, 19851005, 39702010, 79404020]

約数ペア:

[(1, 79404020), (2, 39702010), (4, 19851005), (5, 15880804), (10, 7940402), (20, 3970201), (31, 2561420), (62, 1280710), (89, 892180), (124, 640355), (155, 512284), (178, 446090), (310, 256142), (356, 223045), (445, 178436), (620, 128071), (890, 89218), (1439, 55180), (1780, 44609), (2759, 28780), (2878, 27590), (5518, 14390), (5756, 13795), (7195, 11036)]