20079220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2927}}^1$

素因数の和:2957

約数の個数: 48

約数和(自身を含む): 49190400

約数和(自身を除く): 29111180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2927, 3430, 5854, 6860, 11708, 14635, 20489, 29270, 40978, 58540, 81956, 102445, 143423, 204890, 286846, 409780, 573692, 717115, 1003961, 1434230, 2007922, 2868460, 4015844, 5019805, 10039610, 20079220]

約数ペア:

[(1, 20079220), (2, 10039610), (4, 5019805), (5, 4015844), (7, 2868460), (10, 2007922), (14, 1434230), (20, 1003961), (28, 717115), (35, 573692), (49, 409780), (70, 286846), (98, 204890), (140, 143423), (196, 102445), (245, 81956), (343, 58540), (490, 40978), (686, 29270), (980, 20489), (1372, 14635), (1715, 11708), (2927, 6860), (3430, 5854)]