28518804

素因数分解:

$2^2\times 3^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 80498880

約数和(自身を除く): 51980076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 43, 46, 54, 69, 81, 86, 89, 92, 108, 129, 138, 162, 172, 178, 207, 258, 267, 276, 324, 356, 387, 414, 516, 534, 621, 774, 801, 828, 989, 1068, 1161, 1242, 1548, 1602, 1863, 1978, 2047, 2322, 2403, 2484, 2967, 3204, 3483, 3726, 3827, 3956, 4094, 4644, 4806, 5934, 6141, 6966, 7209, 7452, 7654, 8188, 8901, 9612, 11481, 11868, 12282, 13932, 14418, 15308, 17802, 18423, 22962, 24564, 26703, 28836, 34443, 35604, 36846, 45924, 53406, 55269, 68886, 73692, 80109, 88021, 103329, 106812, 110538, 137772, 160218, 165807, 176042, 206658, 221076, 264063, 309987, 320436, 331614, 352084, 413316, 528126, 619974, 663228, 792189, 1056252, 1239948, 1584378, 2376567, 3168756, 4753134, 7129701, 9506268, 14259402, 28518804]

約数ペア:

[(1, 28518804), (2, 14259402), (3, 9506268), (4, 7129701), (6, 4753134), (9, 3168756), (12, 2376567), (18, 1584378), (23, 1239948), (27, 1056252), (36, 792189), (43, 663228), (46, 619974), (54, 528126), (69, 413316), (81, 352084), (86, 331614), (89, 320436), (92, 309987), (108, 264063), (129, 221076), (138, 206658), (162, 176042), (172, 165807), (178, 160218), (207, 137772), (258, 110538), (267, 106812), (276, 103329), (324, 88021), (356, 80109), (387, 73692), (414, 68886), (516, 55269), (534, 53406), (621, 45924), (774, 36846), (801, 35604), (828, 34443), (989, 28836), (1068, 26703), (1161, 24564), (1242, 22962), (1548, 18423), (1602, 17802), (1863, 15308), (1978, 14418), (2047, 13932), (2322, 12282), (2403, 11868), (2484, 11481), (2967, 9612), (3204, 8901), (3483, 8188), (3726, 7654), (3827, 7452), (3956, 7209), (4094, 6966), (4644, 6141), (4806, 5934)]