66781580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 155823360

約数和(自身を除く): 89041780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 61, 67, 76, 86, 95, 122, 134, 172, 190, 215, 244, 268, 305, 335, 380, 430, 610, 670, 817, 860, 1159, 1220, 1273, 1340, 1634, 2318, 2546, 2623, 2881, 3268, 4085, 4087, 4636, 5092, 5246, 5762, 5795, 6365, 8170, 8174, 10492, 11524, 11590, 12730, 13115, 14405, 16340, 16348, 20435, 23180, 25460, 26230, 28810, 40870, 49837, 52460, 54739, 57620, 77653, 81740, 99674, 109478, 155306, 175741, 199348, 218956, 249185, 273695, 310612, 351482, 388265, 498370, 547390, 702964, 776530, 878705, 996740, 1094780, 1553060, 1757410, 3339079, 3514820, 6678158, 13356316, 16695395, 33390790, 66781580]

約数ペア:

[(1, 66781580), (2, 33390790), (4, 16695395), (5, 13356316), (10, 6678158), (19, 3514820), (20, 3339079), (38, 1757410), (43, 1553060), (61, 1094780), (67, 996740), (76, 878705), (86, 776530), (95, 702964), (122, 547390), (134, 498370), (172, 388265), (190, 351482), (215, 310612), (244, 273695), (268, 249185), (305, 218956), (335, 199348), (380, 175741), (430, 155306), (610, 109478), (670, 99674), (817, 81740), (860, 77653), (1159, 57620), (1220, 54739), (1273, 52460), (1340, 49837), (1634, 40870), (2318, 28810), (2546, 26230), (2623, 25460), (2881, 23180), (3268, 20435), (4085, 16348), (4087, 16340), (4636, 14405), (5092, 13115), (5246, 12730), (5762, 11590), (5795, 11524), (6365, 10492), (8170, 8174)]