1640596280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{3917}}^1$

素因数の和:4248

約数の個数: 64

約数和(自身を含む): 3805475040

約数和(自身を除く): 2164878760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 283, 296, 370, 566, 740, 1132, 1415, 1480, 2264, 2830, 3917, 5660, 7834, 10471, 11320, 15668, 19585, 20942, 31336, 39170, 41884, 52355, 78340, 83768, 104710, 144929, 156680, 209420, 289858, 418840, 579716, 724645, 1108511, 1159432, 1449290, 2217022, 2898580, 4434044, 5542555, 5797160, 8868088, 11085110, 22170220, 41014907, 44340440, 82029814, 164059628, 205074535, 328119256, 410149070, 820298140, 1640596280]

約数ペア:

[(1, 1640596280), (2, 820298140), (4, 410149070), (5, 328119256), (8, 205074535), (10, 164059628), (20, 82029814), (37, 44340440), (40, 41014907), (74, 22170220), (148, 11085110), (185, 8868088), (283, 5797160), (296, 5542555), (370, 4434044), (566, 2898580), (740, 2217022), (1132, 1449290), (1415, 1159432), (1480, 1108511), (2264, 724645), (2830, 579716), (3917, 418840), (5660, 289858), (7834, 209420), (10471, 156680), (11320, 144929), (15668, 104710), (19585, 83768), (20942, 78340), (31336, 52355), (39170, 41884)]