18575440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 47528208

約数和(自身を除く): 28952768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 337, 424, 520, 530, 674, 689, 848, 1040, 1060, 1348, 1378, 1685, 2120, 2696, 2756, 3370, 3445, 4240, 4381, 5392, 5512, 6740, 6890, 8762, 11024, 13480, 13780, 17524, 17861, 21905, 26960, 27560, 35048, 35722, 43810, 55120, 70096, 71444, 87620, 89305, 142888, 175240, 178610, 232193, 285776, 350480, 357220, 464386, 714440, 928772, 1160965, 1428880, 1857544, 2321930, 3715088, 4643860, 9287720, 18575440]

約数ペア:

[(1, 18575440), (2, 9287720), (4, 4643860), (5, 3715088), (8, 2321930), (10, 1857544), (13, 1428880), (16, 1160965), (20, 928772), (26, 714440), (40, 464386), (52, 357220), (53, 350480), (65, 285776), (80, 232193), (104, 178610), (106, 175240), (130, 142888), (208, 89305), (212, 87620), (260, 71444), (265, 70096), (337, 55120), (424, 43810), (520, 35722), (530, 35048), (674, 27560), (689, 26960), (848, 21905), (1040, 17861), (1060, 17524), (1348, 13780), (1378, 13480), (1685, 11024), (2120, 8762), (2696, 6890), (2756, 6740), (3370, 5512), (3445, 5392), (4240, 4381)]