18834920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1249}}^1$

素因数の和:1302

約数の個数: 64

約数和(自身を含む): 47250000

約数和(自身を除く): 28415080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1249, 1508, 1885, 2498, 3016, 3770, 4996, 6245, 7540, 9992, 12490, 15080, 16237, 24980, 32474, 36221, 49960, 64948, 72442, 81185, 129896, 144884, 162370, 181105, 289768, 324740, 362210, 470873, 649480, 724420, 941746, 1448840, 1883492, 2354365, 3766984, 4708730, 9417460, 18834920]

約数ペア:

[(1, 18834920), (2, 9417460), (4, 4708730), (5, 3766984), (8, 2354365), (10, 1883492), (13, 1448840), (20, 941746), (26, 724420), (29, 649480), (40, 470873), (52, 362210), (58, 324740), (65, 289768), (104, 181105), (116, 162370), (130, 144884), (145, 129896), (232, 81185), (260, 72442), (290, 64948), (377, 49960), (520, 36221), (580, 32474), (754, 24980), (1160, 16237), (1249, 15080), (1508, 12490), (1885, 9992), (2498, 7540), (3016, 6245), (3770, 4996)]