20598560

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7573}}^1$

素因数の和:7605

約数の個数: 48

約数和(自身を含む): 51533496

約数和(自身を除く): 30934936

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 7573, 15146, 30292, 37865, 60584, 75730, 121168, 128741, 151460, 242336, 257482, 302920, 514964, 605840, 643705, 1029928, 1211680, 1287410, 2059856, 2574820, 4119712, 5149640, 10299280, 20598560]

約数ペア:

[(1, 20598560), (2, 10299280), (4, 5149640), (5, 4119712), (8, 2574820), (10, 2059856), (16, 1287410), (17, 1211680), (20, 1029928), (32, 643705), (34, 605840), (40, 514964), (68, 302920), (80, 257482), (85, 242336), (136, 151460), (160, 128741), (170, 121168), (272, 75730), (340, 60584), (544, 37865), (680, 30292), (1360, 15146), (2720, 7573)]