20727834075

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{99809}}^1$

素因数の和:99909

約数の個数: 72

約数和(自身を含む): 40545217440

約数和(自身を除く): 19817383365

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 71, 75, 117, 195, 213, 225, 325, 355, 585, 639, 923, 975, 1065, 1775, 2769, 2925, 3195, 4615, 5325, 8307, 13845, 15975, 23075, 41535, 69225, 99809, 207675, 299427, 499045, 898281, 1297517, 1497135, 2495225, 3892551, 4491405, 6487585, 7086439, 7485675, 11677653, 19462755, 21259317, 22457025, 32437925, 35432195, 58388265, 63777951, 92123707, 97313775, 106296585, 177160975, 276371121, 291941325, 318889755, 460618535, 531482925, 829113363, 1381855605, 1594448775, 2303092675, 4145566815, 6909278025, 20727834075]

約数ペア:

[(1, 20727834075), (3, 6909278025), (5, 4145566815), (9, 2303092675), (13, 1594448775), (15, 1381855605), (25, 829113363), (39, 531482925), (45, 460618535), (65, 318889755), (71, 291941325), (75, 276371121), (117, 177160975), (195, 106296585), (213, 97313775), (225, 92123707), (325, 63777951), (355, 58388265), (585, 35432195), (639, 32437925), (923, 22457025), (975, 21259317), (1065, 19462755), (1775, 11677653), (2769, 7485675), (2925, 7086439), (3195, 6487585), (4615, 4491405), (5325, 3892551), (8307, 2495225), (13845, 1497135), (15975, 1297517), (23075, 898281), (41535, 499045), (69225, 299427), (99809, 207675)]