20081925

素因数分解:

$3^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:280

約数の個数: 60

約数和(自身を含む): 38170176

約数和(自身を除く): 18088251

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 81, 135, 141, 211, 225, 235, 405, 423, 633, 675, 705, 1055, 1175, 1269, 1899, 2025, 2115, 3165, 3525, 3807, 5275, 5697, 6345, 9495, 9917, 10575, 15825, 17091, 19035, 28485, 29751, 31725, 47475, 49585, 85455, 89253, 95175, 142425, 148755, 247925, 267759, 427275, 446265, 743775, 803277, 1338795, 2231325, 4016385, 6693975, 20081925]

約数ペア:

[(1, 20081925), (3, 6693975), (5, 4016385), (9, 2231325), (15, 1338795), (25, 803277), (27, 743775), (45, 446265), (47, 427275), (75, 267759), (81, 247925), (135, 148755), (141, 142425), (211, 95175), (225, 89253), (235, 85455), (405, 49585), (423, 47475), (633, 31725), (675, 29751), (705, 28485), (1055, 19035), (1175, 17091), (1269, 15825), (1899, 10575), (2025, 9917), (2115, 9495), (3165, 6345), (3525, 5697), (3807, 5275)]