28739060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1993}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 69678336

約数和(自身を除く): 40939276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 1993, 2060, 2884, 3605, 3986, 7210, 7972, 9965, 13951, 14420, 19930, 27902, 39860, 55804, 69755, 139510, 205279, 279020, 410558, 821116, 1026395, 1436953, 2052790, 2873906, 4105580, 5747812, 7184765, 14369530, 28739060]

約数ペア:

[(1, 28739060), (2, 14369530), (4, 7184765), (5, 5747812), (7, 4105580), (10, 2873906), (14, 2052790), (20, 1436953), (28, 1026395), (35, 821116), (70, 410558), (103, 279020), (140, 205279), (206, 139510), (412, 69755), (515, 55804), (721, 39860), (1030, 27902), (1442, 19930), (1993, 14420), (2060, 13951), (2884, 9965), (3605, 7972), (3986, 7210)]