21005464080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87522767}}^1$

素因数の和:87522783

約数の個数: 40

約数和(自身を含む): 65116939392

約数和(自身を除く): 44111475312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87522767, 175045534, 262568301, 350091068, 437613835, 525136602, 700182136, 875227670, 1050273204, 1312841505, 1400364272, 1750455340, 2100546408, 2625683010, 3500910680, 4201092816, 5251366020, 7001821360, 10502732040, 21005464080]

約数ペア:

[(1, 21005464080), (2, 10502732040), (3, 7001821360), (4, 5251366020), (5, 4201092816), (6, 3500910680), (8, 2625683010), (10, 2100546408), (12, 1750455340), (15, 1400364272), (16, 1312841505), (20, 1050273204), (24, 875227670), (30, 700182136), (40, 525136602), (48, 437613835), (60, 350091068), (80, 262568301), (120, 175045534), (240, 87522767)]