21840800

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1230

約数の個数: 72

約数和(自身を含む): 55683936

約数和(自身を除く): 33843136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 92, 100, 115, 160, 184, 200, 230, 368, 400, 460, 575, 736, 800, 920, 1150, 1187, 1840, 2300, 2374, 3680, 4600, 4748, 5935, 9200, 9496, 11870, 18400, 18992, 23740, 27301, 29675, 37984, 47480, 54602, 59350, 94960, 109204, 118700, 136505, 189920, 218408, 237400, 273010, 436816, 474800, 546020, 682525, 873632, 949600, 1092040, 1365050, 2184080, 2730100, 4368160, 5460200, 10920400, 21840800]

約数ペア:

[(1, 21840800), (2, 10920400), (4, 5460200), (5, 4368160), (8, 2730100), (10, 2184080), (16, 1365050), (20, 1092040), (23, 949600), (25, 873632), (32, 682525), (40, 546020), (46, 474800), (50, 436816), (80, 273010), (92, 237400), (100, 218408), (115, 189920), (160, 136505), (184, 118700), (200, 109204), (230, 94960), (368, 59350), (400, 54602), (460, 47480), (575, 37984), (736, 29675), (800, 27301), (920, 23740), (1150, 18992), (1187, 18400), (1840, 11870), (2300, 9496), (2374, 9200), (3680, 5935), (4600, 4748)]