28444520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2879}}^1$

素因数の和:2922

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 44131480

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 2879, 4940, 5758, 9880, 11516, 14395, 23032, 28790, 37427, 54701, 57580, 74854, 109402, 115160, 149708, 187135, 218804, 273505, 299416, 374270, 437608, 547010, 711113, 748540, 1094020, 1422226, 1497080, 2188040, 2844452, 3555565, 5688904, 7111130, 14222260, 28444520]

約数ペア:

[(1, 28444520), (2, 14222260), (4, 7111130), (5, 5688904), (8, 3555565), (10, 2844452), (13, 2188040), (19, 1497080), (20, 1422226), (26, 1094020), (38, 748540), (40, 711113), (52, 547010), (65, 437608), (76, 374270), (95, 299416), (104, 273505), (130, 218804), (152, 187135), (190, 149708), (247, 115160), (260, 109402), (380, 74854), (494, 57580), (520, 54701), (760, 37427), (988, 28790), (1235, 23032), (1976, 14395), (2470, 11516), (2879, 9880), (4940, 5758)]