21529080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{757}}^1$

素因数の和:853

約数の個数: 96

約数和(自身を含む): 70948800

約数和(自身を除く): 49419720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 711, 757, 790, 948, 1185, 1422, 1514, 1580, 1896, 2271, 2370, 2844, 3028, 3160, 3555, 3785, 4542, 4740, 5688, 6056, 6813, 7110, 7570, 9084, 9480, 11355, 13626, 14220, 15140, 18168, 22710, 27252, 28440, 30280, 34065, 45420, 54504, 59803, 68130, 90840, 119606, 136260, 179409, 239212, 272520, 299015, 358818, 478424, 538227, 598030, 717636, 897045, 1076454, 1196060, 1435272, 1794090, 2152908, 2392120, 2691135, 3588180, 4305816, 5382270, 7176360, 10764540, 21529080]

約数ペア:

[(1, 21529080), (2, 10764540), (3, 7176360), (4, 5382270), (5, 4305816), (6, 3588180), (8, 2691135), (9, 2392120), (10, 2152908), (12, 1794090), (15, 1435272), (18, 1196060), (20, 1076454), (24, 897045), (30, 717636), (36, 598030), (40, 538227), (45, 478424), (60, 358818), (72, 299015), (79, 272520), (90, 239212), (120, 179409), (158, 136260), (180, 119606), (237, 90840), (316, 68130), (360, 59803), (395, 54504), (474, 45420), (632, 34065), (711, 30280), (757, 28440), (790, 27252), (948, 22710), (1185, 18168), (1422, 15140), (1514, 14220), (1580, 13626), (1896, 11355), (2271, 9480), (2370, 9084), (2844, 7570), (3028, 7110), (3160, 6813), (3555, 6056), (3785, 5688), (4542, 4740)]