201217905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2999}}^1$

素因数の和:3091

約数の個数: 64

約数和(自身を含む): 414720000

約数和(自身を除く): 213502095

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 71, 105, 135, 189, 213, 315, 355, 497, 639, 945, 1065, 1491, 1917, 2485, 2999, 3195, 4473, 7455, 8997, 9585, 13419, 14995, 20993, 22365, 26991, 44985, 62979, 67095, 80973, 104965, 134955, 188937, 212929, 314895, 404865, 566811, 638787, 944685, 1064645, 1490503, 1916361, 2834055, 3193935, 4471509, 5749083, 7452515, 9581805, 13414527, 22357545, 28745415, 40243581, 67072635, 201217905]

約数ペア:

[(1, 201217905), (3, 67072635), (5, 40243581), (7, 28745415), (9, 22357545), (15, 13414527), (21, 9581805), (27, 7452515), (35, 5749083), (45, 4471509), (63, 3193935), (71, 2834055), (105, 1916361), (135, 1490503), (189, 1064645), (213, 944685), (315, 638787), (355, 566811), (497, 404865), (639, 314895), (945, 212929), (1065, 188937), (1491, 134955), (1917, 104965), (2485, 80973), (2999, 67095), (3195, 62979), (4473, 44985), (7455, 26991), (8997, 22365), (9585, 20993), (13419, 14995)]