18452560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 49746816

約数和(自身を除く): 31294256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 83, 112, 140, 166, 280, 332, 397, 415, 560, 581, 664, 794, 830, 1162, 1328, 1588, 1660, 1985, 2324, 2779, 2905, 3176, 3320, 3970, 4648, 5558, 5810, 6352, 6640, 7940, 9296, 11116, 11620, 13895, 15880, 22232, 23240, 27790, 31760, 32951, 44464, 46480, 55580, 65902, 111160, 131804, 164755, 222320, 230657, 263608, 329510, 461314, 527216, 659020, 922628, 1153285, 1318040, 1845256, 2306570, 2636080, 3690512, 4613140, 9226280, 18452560]

約数ペア:

[(1, 18452560), (2, 9226280), (4, 4613140), (5, 3690512), (7, 2636080), (8, 2306570), (10, 1845256), (14, 1318040), (16, 1153285), (20, 922628), (28, 659020), (35, 527216), (40, 461314), (56, 329510), (70, 263608), (80, 230657), (83, 222320), (112, 164755), (140, 131804), (166, 111160), (280, 65902), (332, 55580), (397, 46480), (415, 44464), (560, 32951), (581, 31760), (664, 27790), (794, 23240), (830, 22232), (1162, 15880), (1328, 13895), (1588, 11620), (1660, 11116), (1985, 9296), (2324, 7940), (2779, 6640), (2905, 6352), (3176, 5810), (3320, 5558), (3970, 4648)]