64990575

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1307}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 132835248

約数和(自身を除く): 67844673

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 425, 585, 663, 765, 975, 1105, 1275, 1307, 1989, 2925, 3315, 3825, 3921, 5525, 6535, 9945, 11763, 16575, 16991, 19605, 22219, 32675, 49725, 50973, 58815, 66657, 84955, 98025, 111095, 152919, 199971, 254865, 288847, 294075, 333285, 424775, 555475, 764595, 866541, 999855, 1274325, 1444235, 1666425, 2599623, 3822975, 4332705, 4999275, 7221175, 12998115, 21663525, 64990575]

約数ペア:

[(1, 64990575), (3, 21663525), (5, 12998115), (9, 7221175), (13, 4999275), (15, 4332705), (17, 3822975), (25, 2599623), (39, 1666425), (45, 1444235), (51, 1274325), (65, 999855), (75, 866541), (85, 764595), (117, 555475), (153, 424775), (195, 333285), (221, 294075), (225, 288847), (255, 254865), (325, 199971), (425, 152919), (585, 111095), (663, 98025), (765, 84955), (975, 66657), (1105, 58815), (1275, 50973), (1307, 49725), (1989, 32675), (2925, 22219), (3315, 19605), (3825, 16991), (3921, 16575), (5525, 11763), (6535, 9945)]