18327920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17623}}^1$

素因数の和:17649

約数の個数: 40

約数和(自身を含む): 45892896

約数和(自身を除く): 27564976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17623, 35246, 70492, 88115, 140984, 176230, 229099, 281968, 352460, 458198, 704920, 916396, 1145495, 1409840, 1832792, 2290990, 3665584, 4581980, 9163960, 18327920]

約数ペア:

[(1, 18327920), (2, 9163960), (4, 4581980), (5, 3665584), (8, 2290990), (10, 1832792), (13, 1409840), (16, 1145495), (20, 916396), (26, 704920), (40, 458198), (52, 352460), (65, 281968), (80, 229099), (104, 176230), (130, 140984), (208, 88115), (260, 70492), (520, 35246), (1040, 17623)]