81251872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1129}}^1$

素因数の和:1325

約数の個数: 48

約数和(自身を含む): 173418840

約数和(自身を除く): 92166968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 173, 208, 346, 416, 692, 1129, 1384, 2249, 2258, 2768, 4498, 4516, 5536, 8996, 9032, 14677, 17992, 18064, 29354, 35984, 36128, 58708, 71968, 117416, 195317, 234832, 390634, 469664, 781268, 1562536, 2539121, 3125072, 5078242, 6250144, 10156484, 20312968, 40625936, 81251872]

約数ペア:

[(1, 81251872), (2, 40625936), (4, 20312968), (8, 10156484), (13, 6250144), (16, 5078242), (26, 3125072), (32, 2539121), (52, 1562536), (104, 781268), (173, 469664), (208, 390634), (346, 234832), (416, 195317), (692, 117416), (1129, 71968), (1384, 58708), (2249, 36128), (2258, 35984), (2768, 29354), (4498, 18064), (4516, 17992), (5536, 14677), (8996, 9032)]