105271640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{16763}}^1$

素因数の和:16931

約数の個数: 32

約数和(自身を含む): 238384080

約数和(自身を除く): 133112440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 16763, 33526, 67052, 83815, 134104, 167630, 335260, 670520, 2631791, 5263582, 10527164, 13158955, 21054328, 26317910, 52635820, 105271640]

約数ペア:

[(1, 105271640), (2, 52635820), (4, 26317910), (5, 21054328), (8, 13158955), (10, 10527164), (20, 5263582), (40, 2631791), (157, 670520), (314, 335260), (628, 167630), (785, 134104), (1256, 83815), (1570, 67052), (3140, 33526), (6280, 16763)]