157921567880

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2281}}^1\times {\mathrm{17137}}^1$

素因数の和:19530

約数の個数: 64

約数和(自身を含む): 359019848880

約数和(自身を除く): 201098281000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 2281, 4040, 4562, 9124, 11405, 17137, 18248, 22810, 34274, 45620, 68548, 85685, 91240, 137096, 171370, 230381, 342740, 460762, 685480, 921524, 1151905, 1730837, 1843048, 2303810, 3461674, 4607620, 6923348, 8654185, 9215240, 13846696, 17308370, 34616740, 39089497, 69233480, 78178994, 156357988, 195447485, 312715976, 390894970, 781789940, 1563579880, 3948039197, 7896078394, 15792156788, 19740195985, 31584313576, 39480391970, 78960783940, 157921567880]

約数ペア:

[(1, 157921567880), (2, 78960783940), (4, 39480391970), (5, 31584313576), (8, 19740195985), (10, 15792156788), (20, 7896078394), (40, 3948039197), (101, 1563579880), (202, 781789940), (404, 390894970), (505, 312715976), (808, 195447485), (1010, 156357988), (2020, 78178994), (2281, 69233480), (4040, 39089497), (4562, 34616740), (9124, 17308370), (11405, 13846696), (17137, 9215240), (18248, 8654185), (22810, 6923348), (34274, 4607620), (45620, 3461674), (68548, 2303810), (85685, 1843048), (91240, 1730837), (137096, 1151905), (171370, 921524), (230381, 685480), (342740, 460762)]