20807280968

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{313}}^1\times {\mathrm{28753}}^1$

素因数の和:29106

約数の個数: 48

約数和(自身を含む): 41577421380

約数和(自身を除く): 20770140412

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 313, 578, 626, 1156, 1252, 2312, 2504, 5321, 10642, 21284, 28753, 42568, 57506, 90457, 115012, 180914, 230024, 361828, 488801, 723656, 977602, 1955204, 3910408, 8309617, 8999689, 16619234, 17999378, 33238468, 35998756, 66476936, 71997512, 152994713, 305989426, 611978852, 1223957704, 2600910121, 5201820242, 10403640484, 20807280968]

約数ペア:

[(1, 20807280968), (2, 10403640484), (4, 5201820242), (8, 2600910121), (17, 1223957704), (34, 611978852), (68, 305989426), (136, 152994713), (289, 71997512), (313, 66476936), (578, 35998756), (626, 33238468), (1156, 17999378), (1252, 16619234), (2312, 8999689), (2504, 8309617), (5321, 3910408), (10642, 1955204), (21284, 977602), (28753, 723656), (42568, 488801), (57506, 361828), (90457, 230024), (115012, 180914)]