21510120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2269}}^1$

素因数の和:2362

約数の個数: 64

約数和(自身を含む): 65376000

約数和(自身を除く): 43865880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2269, 2370, 3160, 4538, 4740, 6807, 9076, 9480, 11345, 13614, 18152, 22690, 27228, 34035, 45380, 54456, 68070, 90760, 136140, 179251, 272280, 358502, 537753, 717004, 896255, 1075506, 1434008, 1792510, 2151012, 2688765, 3585020, 4302024, 5377530, 7170040, 10755060, 21510120]

約数ペア:

[(1, 21510120), (2, 10755060), (3, 7170040), (4, 5377530), (5, 4302024), (6, 3585020), (8, 2688765), (10, 2151012), (12, 1792510), (15, 1434008), (20, 1075506), (24, 896255), (30, 717004), (40, 537753), (60, 358502), (79, 272280), (120, 179251), (158, 136140), (237, 90760), (316, 68070), (395, 54456), (474, 45380), (632, 34035), (790, 27228), (948, 22690), (1185, 18152), (1580, 13614), (1896, 11345), (2269, 9480), (2370, 9076), (3160, 6807), (4538, 4740)]