18988896905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{739}}^1\times {\mathrm{1201}}^1$

素因数の和:2345

約数の個数: 32

約数和(自身を含む): 24976598400

約数和(自身を除く): 5987701495

約数列:

[1, 5, 11, 55, 389, 739, 1201, 1945, 3695, 4279, 6005, 8129, 13211, 21395, 40645, 66055, 287471, 467189, 887539, 1437355, 2335945, 3162181, 4437695, 5139079, 9762929, 15810905, 25695395, 48814645, 345252671, 1726263355, 3797779381, 18988896905]

約数ペア:

[(1, 18988896905), (5, 3797779381), (11, 1726263355), (55, 345252671), (389, 48814645), (739, 25695395), (1201, 15810905), (1945, 9762929), (3695, 5139079), (4279, 4437695), (6005, 3162181), (8129, 2335945), (13211, 1437355), (21395, 887539), (40645, 467189), (66055, 287471)]