19988288

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:439

約数の個数: 56

約数和(自身を含む): 42623232

約数和(自身を除く): 22634944

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 64, 74, 92, 148, 184, 296, 367, 368, 592, 734, 736, 851, 1184, 1468, 1472, 1702, 2368, 2936, 3404, 5872, 6808, 8441, 11744, 13579, 13616, 16882, 23488, 27158, 27232, 33764, 54316, 54464, 67528, 108632, 135056, 217264, 270112, 312317, 434528, 540224, 624634, 869056, 1249268, 2498536, 4997072, 9994144, 19988288]

約数ペア:

[(1, 19988288), (2, 9994144), (4, 4997072), (8, 2498536), (16, 1249268), (23, 869056), (32, 624634), (37, 540224), (46, 434528), (64, 312317), (74, 270112), (92, 217264), (148, 135056), (184, 108632), (296, 67528), (367, 54464), (368, 54316), (592, 33764), (734, 27232), (736, 27158), (851, 23488), (1184, 16882), (1468, 13616), (1472, 13579), (1702, 11744), (2368, 8441), (2936, 6808), (3404, 5872)]