31103620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{613}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 68080320

約数和(自身を除く): 36976700

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 590, 613, 860, 1180, 1226, 2452, 2537, 3065, 5074, 6130, 10148, 12260, 12685, 25370, 26359, 36167, 50740, 52718, 72334, 105436, 131795, 144668, 180835, 263590, 361670, 527180, 723340, 1555181, 3110362, 6220724, 7775905, 15551810, 31103620]

約数ペア:

[(1, 31103620), (2, 15551810), (4, 7775905), (5, 6220724), (10, 3110362), (20, 1555181), (43, 723340), (59, 527180), (86, 361670), (118, 263590), (172, 180835), (215, 144668), (236, 131795), (295, 105436), (430, 72334), (590, 52718), (613, 50740), (860, 36167), (1180, 26359), (1226, 25370), (2452, 12685), (2537, 12260), (3065, 10148), (5074, 6130)]