72780525

素因数分解:

$3^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:432

約数の個数: 60

約数和(自身を含む): 136356352

約数和(自身を除く): 63575827

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 127, 135, 225, 283, 381, 405, 635, 675, 849, 1143, 1415, 1905, 2025, 2547, 3175, 3429, 4245, 5715, 7075, 7641, 9525, 10287, 12735, 17145, 21225, 22923, 28575, 35941, 38205, 51435, 63675, 85725, 107823, 114615, 179705, 191025, 257175, 323469, 539115, 573075, 898525, 970407, 1617345, 2695575, 2911221, 4852035, 8086725, 14556105, 24260175, 72780525]

約数ペア:

[(1, 72780525), (3, 24260175), (5, 14556105), (9, 8086725), (15, 4852035), (25, 2911221), (27, 2695575), (45, 1617345), (75, 970407), (81, 898525), (127, 573075), (135, 539115), (225, 323469), (283, 257175), (381, 191025), (405, 179705), (635, 114615), (675, 107823), (849, 85725), (1143, 63675), (1415, 51435), (1905, 38205), (2025, 35941), (2547, 28575), (3175, 22923), (3429, 21225), (4245, 17145), (5715, 12735), (7075, 10287), (7641, 9525)]