209965725

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{3229}}^1$

素因数の和:3279

約数の個数: 54

約数和(自身を含む): 399618830

約数和(自身を除く): 189653105

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 289, 425, 765, 867, 1275, 1445, 2601, 3229, 3825, 4335, 7225, 9687, 13005, 16145, 21675, 29061, 48435, 54893, 65025, 80725, 145305, 164679, 242175, 274465, 494037, 726525, 823395, 933181, 1372325, 2470185, 2799543, 4116975, 4665905, 8398629, 12350925, 13997715, 23329525, 41993145, 69988575, 209965725]

約数ペア:

[(1, 209965725), (3, 69988575), (5, 41993145), (9, 23329525), (15, 13997715), (17, 12350925), (25, 8398629), (45, 4665905), (51, 4116975), (75, 2799543), (85, 2470185), (153, 1372325), (225, 933181), (255, 823395), (289, 726525), (425, 494037), (765, 274465), (867, 242175), (1275, 164679), (1445, 145305), (2601, 80725), (3229, 65025), (3825, 54893), (4335, 48435), (7225, 29061), (9687, 21675), (13005, 16145)]