65158760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{881}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 150266340

約数和(自身を除く): 85107580

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 881, 1720, 1762, 1849, 3524, 3698, 4405, 7048, 7396, 8810, 9245, 14792, 17620, 18490, 35240, 36980, 37883, 73960, 75766, 151532, 189415, 303064, 378830, 757660, 1515320, 1628969, 3257938, 6515876, 8144845, 13031752, 16289690, 32579380, 65158760]

約数ペア:

[(1, 65158760), (2, 32579380), (4, 16289690), (5, 13031752), (8, 8144845), (10, 6515876), (20, 3257938), (40, 1628969), (43, 1515320), (86, 757660), (172, 378830), (215, 303064), (344, 189415), (430, 151532), (860, 75766), (881, 73960), (1720, 37883), (1762, 36980), (1849, 35240), (3524, 18490), (3698, 17620), (4405, 14792), (7048, 9245), (7396, 8810)]