21786960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6983}}^1$

素因数の和:7012

約数の個数: 80

約数和(自身を含む): 72745344

約数和(自身を除く): 50958384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6983, 13966, 20949, 27932, 34915, 41898, 55864, 69830, 83796, 90779, 104745, 111728, 139660, 167592, 181558, 209490, 272337, 279320, 335184, 363116, 418980, 453895, 544674, 558640, 726232, 837960, 907790, 1089348, 1361685, 1452464, 1675920, 1815580, 2178696, 2723370, 3631160, 4357392, 5446740, 7262320, 10893480, 21786960]

約数ペア:

[(1, 21786960), (2, 10893480), (3, 7262320), (4, 5446740), (5, 4357392), (6, 3631160), (8, 2723370), (10, 2178696), (12, 1815580), (13, 1675920), (15, 1452464), (16, 1361685), (20, 1089348), (24, 907790), (26, 837960), (30, 726232), (39, 558640), (40, 544674), (48, 453895), (52, 418980), (60, 363116), (65, 335184), (78, 279320), (80, 272337), (104, 209490), (120, 181558), (130, 167592), (156, 139660), (195, 111728), (208, 104745), (240, 90779), (260, 83796), (312, 69830), (390, 55864), (520, 41898), (624, 34915), (780, 27932), (1040, 20949), (1560, 13966), (3120, 6983)]