20488416

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{16417}}^1$

素因数の和:16443

約数の個数: 48

約数和(自身を含む): 57922704

約数和(自身を除く): 37434288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 16417, 32834, 49251, 65668, 98502, 131336, 197004, 213421, 262672, 394008, 426842, 525344, 640263, 788016, 853684, 1280526, 1576032, 1707368, 2561052, 3414736, 5122104, 6829472, 10244208, 20488416]

約数ペア:

[(1, 20488416), (2, 10244208), (3, 6829472), (4, 5122104), (6, 3414736), (8, 2561052), (12, 1707368), (13, 1576032), (16, 1280526), (24, 853684), (26, 788016), (32, 640263), (39, 525344), (48, 426842), (52, 394008), (78, 262672), (96, 213421), (104, 197004), (156, 131336), (208, 98502), (312, 65668), (416, 49251), (624, 32834), (1248, 16417)]