31148008040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18109307}}^1$

素因数の和:18109361

約数の個数: 32

約数和(自身を含む): 71712859680

約数和(自身を除く): 40564851640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18109307, 36218614, 72437228, 90546535, 144874456, 181093070, 362186140, 724372280, 778700201, 1557400402, 3114800804, 3893501005, 6229601608, 7787002010, 15574004020, 31148008040]

約数ペア:

[(1, 31148008040), (2, 15574004020), (4, 7787002010), (5, 6229601608), (8, 3893501005), (10, 3114800804), (20, 1557400402), (40, 778700201), (43, 724372280), (86, 362186140), (172, 181093070), (215, 144874456), (344, 90546535), (430, 72437228), (860, 36218614), (1720, 18109307)]