194889440

素因数分解:

$2^5\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2441}}^1$

素因数の和:2955

約数の個数: 48

約数和(自身を含む): 461538000

約数和(自身を除く): 266648560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 499, 998, 1996, 2441, 2495, 3992, 4882, 4990, 7984, 9764, 9980, 12205, 15968, 19528, 19960, 24410, 39056, 39920, 48820, 78112, 79840, 97640, 195280, 390560, 1218059, 2436118, 4872236, 6090295, 9744472, 12180590, 19488944, 24361180, 38977888, 48722360, 97444720, 194889440]

約数ペア:

[(1, 194889440), (2, 97444720), (4, 48722360), (5, 38977888), (8, 24361180), (10, 19488944), (16, 12180590), (20, 9744472), (32, 6090295), (40, 4872236), (80, 2436118), (160, 1218059), (499, 390560), (998, 195280), (1996, 97640), (2441, 79840), (2495, 78112), (3992, 48820), (4882, 39920), (4990, 39056), (7984, 24410), (9764, 19960), (9980, 19528), (12205, 15968)]