81458964

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{241}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 212732520

約数和(自身を除く): 131273556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 229, 241, 246, 369, 458, 482, 492, 687, 723, 738, 916, 964, 1374, 1446, 1476, 2061, 2169, 2748, 2892, 4122, 4338, 8244, 8676, 9389, 9881, 18778, 19762, 28167, 29643, 37556, 39524, 55189, 56334, 59286, 84501, 88929, 110378, 112668, 118572, 165567, 169002, 177858, 220756, 331134, 338004, 355716, 496701, 662268, 993402, 1986804, 2262749, 4525498, 6788247, 9050996, 13576494, 20364741, 27152988, 40729482, 81458964]

約数ペア:

[(1, 81458964), (2, 40729482), (3, 27152988), (4, 20364741), (6, 13576494), (9, 9050996), (12, 6788247), (18, 4525498), (36, 2262749), (41, 1986804), (82, 993402), (123, 662268), (164, 496701), (229, 355716), (241, 338004), (246, 331134), (369, 220756), (458, 177858), (482, 169002), (492, 165567), (687, 118572), (723, 112668), (738, 110378), (916, 88929), (964, 84501), (1374, 59286), (1446, 56334), (1476, 55189), (2061, 39524), (2169, 37556), (2748, 29643), (2892, 28167), (4122, 19762), (4338, 18778), (8244, 9881), (8676, 9389)]