28012920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17957}}^1$

素因数の和:17984

約数の個数: 64

約数和(自身を含む): 90508320

約数和(自身を除く): 62495400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 17957, 35914, 53871, 71828, 89785, 107742, 143656, 179570, 215484, 233441, 269355, 359140, 430968, 466882, 538710, 700323, 718280, 933764, 1077420, 1167205, 1400646, 1867528, 2154840, 2334410, 2801292, 3501615, 4668820, 5602584, 7003230, 9337640, 14006460, 28012920]

約数ペア:

[(1, 28012920), (2, 14006460), (3, 9337640), (4, 7003230), (5, 5602584), (6, 4668820), (8, 3501615), (10, 2801292), (12, 2334410), (13, 2154840), (15, 1867528), (20, 1400646), (24, 1167205), (26, 1077420), (30, 933764), (39, 718280), (40, 700323), (52, 538710), (60, 466882), (65, 430968), (78, 359140), (104, 269355), (120, 233441), (130, 215484), (156, 179570), (195, 143656), (260, 107742), (312, 89785), (390, 71828), (520, 53871), (780, 35914), (1560, 17957)]