213874420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1\times {\mathrm{1303}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 466623360

約数和(自身を除く): 252748940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 283, 290, 566, 580, 1132, 1303, 1415, 2606, 2830, 5212, 5660, 6515, 8207, 13030, 16414, 26060, 32828, 37787, 41035, 75574, 82070, 151148, 164140, 188935, 368749, 377870, 737498, 755740, 1474996, 1843745, 3687490, 7374980, 10693721, 21387442, 42774884, 53468605, 106937210, 213874420]

約数ペア:

[(1, 213874420), (2, 106937210), (4, 53468605), (5, 42774884), (10, 21387442), (20, 10693721), (29, 7374980), (58, 3687490), (116, 1843745), (145, 1474996), (283, 755740), (290, 737498), (566, 377870), (580, 368749), (1132, 188935), (1303, 164140), (1415, 151148), (2606, 82070), (2830, 75574), (5212, 41035), (5660, 37787), (6515, 32828), (8207, 26060), (13030, 16414)]