649010025

素因数分解:

$3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 1188611424

約数和(自身を除く): 539601399

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 97, 131, 225, 227, 291, 393, 485, 655, 681, 873, 1135, 1179, 1455, 1965, 2043, 2425, 3275, 3405, 4365, 5675, 5895, 7275, 9825, 10215, 12707, 17025, 21825, 22019, 29475, 29737, 38121, 51075, 63535, 66057, 89211, 110095, 114363, 148685, 190605, 198171, 267633, 317675, 330285, 446055, 550475, 571815, 743425, 953025, 990855, 1338165, 1651425, 2230275, 2859075, 2884489, 4954275, 6690825, 8653467, 14422445, 25960401, 43267335, 72112225, 129802005, 216336675, 649010025]

約数ペア:

[(1, 649010025), (3, 216336675), (5, 129802005), (9, 72112225), (15, 43267335), (25, 25960401), (45, 14422445), (75, 8653467), (97, 6690825), (131, 4954275), (225, 2884489), (227, 2859075), (291, 2230275), (393, 1651425), (485, 1338165), (655, 990855), (681, 953025), (873, 743425), (1135, 571815), (1179, 550475), (1455, 446055), (1965, 330285), (2043, 317675), (2425, 267633), (3275, 198171), (3405, 190605), (4365, 148685), (5675, 114363), (5895, 110095), (7275, 89211), (9825, 66057), (10215, 63535), (12707, 51075), (17025, 38121), (21825, 29737), (22019, 29475)]