19979431060

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{499}}^1\times {\mathrm{6521}}^1$

素因数の和:7336

約数の個数: 48

約数和(自身を含む): 42184296000

約数和(自身を除く): 22204864940

約数列:

[1, 2, 4, 5, 10, 20, 307, 499, 614, 998, 1228, 1535, 1996, 2495, 3070, 4990, 6140, 6521, 9980, 13042, 26084, 32605, 65210, 130420, 153193, 306386, 612772, 765965, 1531930, 2001947, 3063860, 3253979, 4003894, 6507958, 8007788, 10009735, 13015916, 16269895, 20019470, 32539790, 40038940, 65079580, 998971553, 1997943106, 3995886212, 4994857765, 9989715530, 19979431060]

約数ペア:

[(1, 19979431060), (2, 9989715530), (4, 4994857765), (5, 3995886212), (10, 1997943106), (20, 998971553), (307, 65079580), (499, 40038940), (614, 32539790), (998, 20019470), (1228, 16269895), (1535, 13015916), (1996, 10009735), (2495, 8007788), (3070, 6507958), (4990, 4003894), (6140, 3253979), (6521, 3063860), (9980, 2001947), (13042, 1531930), (26084, 765965), (32605, 612772), (65210, 306386), (130420, 153193)]