20678625

素因数分解:

$3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{557}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 41783040

約数和(自身を除く): 21104415

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 125, 135, 165, 225, 275, 297, 375, 495, 557, 675, 825, 1125, 1375, 1485, 1671, 2475, 2785, 3375, 4125, 5013, 6127, 7425, 8355, 12375, 13925, 15039, 18381, 25065, 30635, 37125, 41775, 55143, 69625, 75195, 91905, 125325, 153175, 165429, 208875, 275715, 375975, 459525, 626625, 765875, 827145, 1378575, 1879875, 2297625, 4135725, 6892875, 20678625]

約数ペア:

[(1, 20678625), (3, 6892875), (5, 4135725), (9, 2297625), (11, 1879875), (15, 1378575), (25, 827145), (27, 765875), (33, 626625), (45, 459525), (55, 375975), (75, 275715), (99, 208875), (125, 165429), (135, 153175), (165, 125325), (225, 91905), (275, 75195), (297, 69625), (375, 55143), (495, 41775), (557, 37125), (675, 30635), (825, 25065), (1125, 18381), (1375, 15039), (1485, 13925), (1671, 12375), (2475, 8355), (2785, 7425), (3375, 6127), (4125, 5013)]