155391640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{2311}}^1$

素因数の和:2404

約数の個数: 48

約数和(自身を含む): 358521840

約数和(自身を除く): 203130200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1681, 2311, 3362, 4622, 6724, 8405, 9244, 11555, 13448, 16810, 18488, 23110, 33620, 46220, 67240, 92440, 94751, 189502, 379004, 473755, 758008, 947510, 1895020, 3790040, 3884791, 7769582, 15539164, 19423955, 31078328, 38847910, 77695820, 155391640]

約数ペア:

[(1, 155391640), (2, 77695820), (4, 38847910), (5, 31078328), (8, 19423955), (10, 15539164), (20, 7769582), (40, 3884791), (41, 3790040), (82, 1895020), (164, 947510), (205, 758008), (328, 473755), (410, 379004), (820, 189502), (1640, 94751), (1681, 92440), (2311, 67240), (3362, 46220), (4622, 33620), (6724, 23110), (8405, 18488), (9244, 16810), (11555, 13448)]