209748525

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{67}}^2\times {\mathrm{89}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 406848960

約数和(自身を除く): 197100435

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 67, 75, 89, 105, 175, 201, 267, 335, 445, 469, 525, 623, 1005, 1335, 1407, 1675, 1869, 2225, 2345, 3115, 4489, 5025, 5963, 6675, 7035, 9345, 11725, 13467, 15575, 17889, 22445, 29815, 31423, 35175, 41741, 46725, 67335, 89445, 94269, 112225, 125223, 149075, 157115, 208705, 336675, 399521, 447225, 471345, 626115, 785575, 1043525, 1198563, 1997605, 2356725, 2796647, 3130575, 5992815, 8389941, 9988025, 13983235, 29964075, 41949705, 69916175, 209748525]

約数ペア:

[(1, 209748525), (3, 69916175), (5, 41949705), (7, 29964075), (15, 13983235), (21, 9988025), (25, 8389941), (35, 5992815), (67, 3130575), (75, 2796647), (89, 2356725), (105, 1997605), (175, 1198563), (201, 1043525), (267, 785575), (335, 626115), (445, 471345), (469, 447225), (525, 399521), (623, 336675), (1005, 208705), (1335, 157115), (1407, 149075), (1675, 125223), (1869, 112225), (2225, 94269), (2345, 89445), (3115, 67335), (4489, 46725), (5025, 41741), (5963, 35175), (6675, 31423), (7035, 29815), (9345, 22445), (11725, 17889), (13467, 15575)]