18790720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4517}}^1$

素因数の和:4547

約数の個数: 56

約数和(自身を含む): 48198024

約数和(自身を除く): 29407304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4517, 9034, 18068, 22585, 36136, 45170, 58721, 72272, 90340, 117442, 144544, 180680, 234884, 289088, 293605, 361360, 469768, 587210, 722720, 939536, 1174420, 1445440, 1879072, 2348840, 3758144, 4697680, 9395360, 18790720]

約数ペア:

[(1, 18790720), (2, 9395360), (4, 4697680), (5, 3758144), (8, 2348840), (10, 1879072), (13, 1445440), (16, 1174420), (20, 939536), (26, 722720), (32, 587210), (40, 469768), (52, 361360), (64, 293605), (65, 289088), (80, 234884), (104, 180680), (130, 144544), (160, 117442), (208, 90340), (260, 72272), (320, 58721), (416, 45170), (520, 36136), (832, 22585), (1040, 18068), (2080, 9034), (4160, 4517)]