20025008

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:945

約数の個数: 40

約数和(自身を含む): 40949760

約数和(自身を除く): 20924752

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 859, 1457, 1718, 2914, 3436, 5828, 6872, 11656, 13744, 23312, 26629, 40373, 53258, 80746, 106516, 161492, 213032, 322984, 426064, 645968, 1251563, 2503126, 5006252, 10012504, 20025008]

約数ペア:

[(1, 20025008), (2, 10012504), (4, 5006252), (8, 2503126), (16, 1251563), (31, 645968), (47, 426064), (62, 322984), (94, 213032), (124, 161492), (188, 106516), (248, 80746), (376, 53258), (496, 40373), (752, 26629), (859, 23312), (1457, 13744), (1718, 11656), (2914, 6872), (3436, 5828)]