20786272

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1723}}^1$

素因数の和:1775

約数の個数: 48

約数和(自身を含む): 45617040

約数和(自身を除く): 24830768

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 104, 116, 208, 232, 377, 416, 464, 754, 928, 1508, 1723, 3016, 3446, 6032, 6892, 12064, 13784, 22399, 27568, 44798, 49967, 55136, 89596, 99934, 179192, 199868, 358384, 399736, 649571, 716768, 799472, 1299142, 1598944, 2598284, 5196568, 10393136, 20786272]

約数ペア:

[(1, 20786272), (2, 10393136), (4, 5196568), (8, 2598284), (13, 1598944), (16, 1299142), (26, 799472), (29, 716768), (32, 649571), (52, 399736), (58, 358384), (104, 199868), (116, 179192), (208, 99934), (232, 89596), (377, 55136), (416, 49967), (464, 44798), (754, 27568), (928, 22399), (1508, 13784), (1723, 12064), (3016, 6892), (3446, 6032)]