201235905

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:647

約数の個数: 72

約数和(自身を含む): 386425728

約数和(自身を除く): 185189823

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 169, 195, 235, 423, 507, 563, 585, 611, 705, 845, 1521, 1689, 1833, 2115, 2535, 2815, 3055, 5067, 5499, 7319, 7605, 7943, 8445, 9165, 21957, 23829, 25335, 26461, 27495, 36595, 39715, 65871, 71487, 79383, 95147, 109785, 119145, 132305, 238149, 285441, 329355, 343993, 357435, 396915, 475735, 856323, 1031979, 1190745, 1427205, 1719965, 3095937, 4281615, 4471909, 5159895, 13415727, 15479685, 22359545, 40247181, 67078635, 201235905]

約数ペア:

[(1, 201235905), (3, 67078635), (5, 40247181), (9, 22359545), (13, 15479685), (15, 13415727), (39, 5159895), (45, 4471909), (47, 4281615), (65, 3095937), (117, 1719965), (141, 1427205), (169, 1190745), (195, 1031979), (235, 856323), (423, 475735), (507, 396915), (563, 357435), (585, 343993), (611, 329355), (705, 285441), (845, 238149), (1521, 132305), (1689, 119145), (1833, 109785), (2115, 95147), (2535, 79383), (2815, 71487), (3055, 65871), (5067, 39715), (5499, 36595), (7319, 27495), (7605, 26461), (7943, 25335), (8445, 23829), (9165, 21957)]