21860680

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^2\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 50353020

約数和(自身を除く): 28492340

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 157, 236, 295, 314, 472, 590, 628, 785, 1180, 1256, 1570, 2360, 3140, 3481, 6280, 6962, 9263, 13924, 17405, 18526, 27848, 34810, 37052, 46315, 69620, 74104, 92630, 139240, 185260, 370520, 546517, 1093034, 2186068, 2732585, 4372136, 5465170, 10930340, 21860680]

約数ペア:

[(1, 21860680), (2, 10930340), (4, 5465170), (5, 4372136), (8, 2732585), (10, 2186068), (20, 1093034), (40, 546517), (59, 370520), (118, 185260), (157, 139240), (236, 92630), (295, 74104), (314, 69620), (472, 46315), (590, 37052), (628, 34810), (785, 27848), (1180, 18526), (1256, 17405), (1570, 13924), (2360, 9263), (3140, 6962), (3481, 6280)]