820498172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1\times {\mathrm{409}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 1566055680

約数和(自身を除く): 745557508

約数列:

[1, 2, 4, 13, 26, 52, 173, 223, 346, 409, 446, 692, 818, 892, 1636, 2249, 2899, 4498, 5317, 5798, 8996, 10634, 11596, 21268, 38579, 70757, 77158, 91207, 141514, 154316, 182414, 283028, 364828, 501527, 919841, 1003054, 1185691, 1839682, 2006108, 2371382, 3679364, 4742764, 15778811, 31557622, 63115244, 205124543, 410249086, 820498172]

約数ペア:

[(1, 820498172), (2, 410249086), (4, 205124543), (13, 63115244), (26, 31557622), (52, 15778811), (173, 4742764), (223, 3679364), (346, 2371382), (409, 2006108), (446, 1839682), (692, 1185691), (818, 1003054), (892, 919841), (1636, 501527), (2249, 364828), (2899, 283028), (4498, 182414), (5317, 154316), (5798, 141514), (8996, 91207), (10634, 77158), (11596, 70757), (21268, 38579)]