18733520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18013}}^1$

素因数の和:18039

約数の個数: 40

約数和(自身を含む): 46908456

約数和(自身を除く): 28174936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18013, 36026, 72052, 90065, 144104, 180130, 234169, 288208, 360260, 468338, 720520, 936676, 1170845, 1441040, 1873352, 2341690, 3746704, 4683380, 9366760, 18733520]

約数ペア:

[(1, 18733520), (2, 9366760), (4, 4683380), (5, 3746704), (8, 2341690), (10, 1873352), (13, 1441040), (16, 1170845), (20, 936676), (26, 720520), (40, 468338), (52, 360260), (65, 288208), (80, 234169), (104, 180130), (130, 144104), (208, 90065), (260, 72052), (520, 36026), (1040, 18013)]