21135120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1061}}^1$

素因数の和:1160

約数の個数: 80

約数和(自身を含む): 66370752

約数和(自身を除く): 45235632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 83, 120, 166, 240, 249, 332, 415, 498, 664, 830, 996, 1061, 1245, 1328, 1660, 1992, 2122, 2490, 3183, 3320, 3984, 4244, 4980, 5305, 6366, 6640, 8488, 9960, 10610, 12732, 15915, 16976, 19920, 21220, 25464, 31830, 42440, 50928, 63660, 84880, 88063, 127320, 176126, 254640, 264189, 352252, 440315, 528378, 704504, 880630, 1056756, 1320945, 1409008, 1761260, 2113512, 2641890, 3522520, 4227024, 5283780, 7045040, 10567560, 21135120]

約数ペア:

[(1, 21135120), (2, 10567560), (3, 7045040), (4, 5283780), (5, 4227024), (6, 3522520), (8, 2641890), (10, 2113512), (12, 1761260), (15, 1409008), (16, 1320945), (20, 1056756), (24, 880630), (30, 704504), (40, 528378), (48, 440315), (60, 352252), (80, 264189), (83, 254640), (120, 176126), (166, 127320), (240, 88063), (249, 84880), (332, 63660), (415, 50928), (498, 42440), (664, 31830), (830, 25464), (996, 21220), (1061, 19920), (1245, 16976), (1328, 15915), (1660, 12732), (1992, 10610), (2122, 9960), (2490, 8488), (3183, 6640), (3320, 6366), (3984, 5305), (4244, 4980)]