20118256

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{863}}^1$

素因数の和:949

約数の個数: 40

約数和(自身を含む): 41140224

約数和(自身を除く): 21021968

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 863, 1457, 1726, 2914, 3452, 5828, 6904, 11656, 13808, 23312, 26753, 40561, 53506, 81122, 107012, 162244, 214024, 324488, 428048, 648976, 1257391, 2514782, 5029564, 10059128, 20118256]

約数ペア:

[(1, 20118256), (2, 10059128), (4, 5029564), (8, 2514782), (16, 1257391), (31, 648976), (47, 428048), (62, 324488), (94, 214024), (124, 162244), (188, 107012), (248, 81122), (376, 53506), (496, 40561), (752, 26753), (863, 23312), (1457, 13808), (1726, 11656), (2914, 6904), (3452, 5828)]