20119708

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{641}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 43142400

約数和(自身を除く): 23022692

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 59, 76, 118, 133, 236, 266, 413, 532, 641, 826, 1121, 1282, 1652, 2242, 2564, 4484, 4487, 7847, 8974, 12179, 15694, 17948, 24358, 31388, 37819, 48716, 75638, 85253, 151276, 170506, 264733, 341012, 529466, 718561, 1058932, 1437122, 2874244, 5029927, 10059854, 20119708]

約数ペア:

[(1, 20119708), (2, 10059854), (4, 5029927), (7, 2874244), (14, 1437122), (19, 1058932), (28, 718561), (38, 529466), (59, 341012), (76, 264733), (118, 170506), (133, 151276), (236, 85253), (266, 75638), (413, 48716), (532, 37819), (641, 31388), (826, 24358), (1121, 17948), (1282, 15694), (1652, 12179), (2242, 8974), (2564, 7847), (4484, 4487)]