638825090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1\times {\mathrm{1427}}^1$

素因数の和:2026

約数の個数: 32

約数和(自身を含む): 1165933440

約数和(自身を除く): 527108350

約数列:

[1, 2, 5, 10, 89, 178, 445, 503, 890, 1006, 1427, 2515, 2854, 5030, 7135, 14270, 44767, 89534, 127003, 223835, 254006, 447670, 635015, 717781, 1270030, 1435562, 3588905, 7177810, 63882509, 127765018, 319412545, 638825090]

約数ペア:

[(1, 638825090), (2, 319412545), (5, 127765018), (10, 63882509), (89, 7177810), (178, 3588905), (445, 1435562), (503, 1270030), (890, 717781), (1006, 635015), (1427, 447670), (2515, 254006), (2854, 223835), (5030, 127003), (7135, 89534), (14270, 44767)]