21120360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2411}}^1$

素因数の和:2498

約数の個数: 64

約数和(自身を含む): 64255680

約数和(自身を除く): 43135320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2411, 2920, 4380, 4822, 7233, 8760, 9644, 12055, 14466, 19288, 24110, 28932, 36165, 48220, 57864, 72330, 96440, 144660, 176003, 289320, 352006, 528009, 704012, 880015, 1056018, 1408024, 1760030, 2112036, 2640045, 3520060, 4224072, 5280090, 7040120, 10560180, 21120360]

約数ペア:

[(1, 21120360), (2, 10560180), (3, 7040120), (4, 5280090), (5, 4224072), (6, 3520060), (8, 2640045), (10, 2112036), (12, 1760030), (15, 1408024), (20, 1056018), (24, 880015), (30, 704012), (40, 528009), (60, 352006), (73, 289320), (120, 176003), (146, 144660), (219, 96440), (292, 72330), (365, 57864), (438, 48220), (584, 36165), (730, 28932), (876, 24110), (1095, 19288), (1460, 14466), (1752, 12055), (2190, 9644), (2411, 8760), (2920, 7233), (4380, 4822)]