28749760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6911}}^1$

素因数の和:6941

約数の個数: 56

約数和(自身を含む): 73737216

約数和(自身を除く): 44987456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 6911, 13822, 27644, 34555, 55288, 69110, 89843, 110576, 138220, 179686, 221152, 276440, 359372, 442304, 449215, 552880, 718744, 898430, 1105760, 1437488, 1796860, 2211520, 2874976, 3593720, 5749952, 7187440, 14374880, 28749760]

約数ペア:

[(1, 28749760), (2, 14374880), (4, 7187440), (5, 5749952), (8, 3593720), (10, 2874976), (13, 2211520), (16, 1796860), (20, 1437488), (26, 1105760), (32, 898430), (40, 718744), (52, 552880), (64, 449215), (65, 442304), (80, 359372), (104, 276440), (130, 221152), (160, 179686), (208, 138220), (260, 110576), (320, 89843), (416, 69110), (520, 55288), (832, 34555), (1040, 27644), (2080, 13822), (4160, 6911)]