248713075

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:153

約数の個数: 54

約数和(自身を含む): 351204084

約数和(自身を除く): 102491009

約数列:

[1, 5, 13, 25, 37, 43, 65, 169, 185, 215, 325, 481, 559, 845, 925, 1075, 1369, 1591, 2405, 2795, 4225, 6253, 6845, 7267, 7955, 12025, 13975, 17797, 20683, 31265, 34225, 36335, 39775, 58867, 88985, 103415, 156325, 181675, 231361, 268879, 294335, 444925, 517075, 765271, 1156805, 1344395, 1471675, 3826355, 5784025, 6721975, 9948523, 19131775, 49742615, 248713075]

約数ペア:

[(1, 248713075), (5, 49742615), (13, 19131775), (25, 9948523), (37, 6721975), (43, 5784025), (65, 3826355), (169, 1471675), (185, 1344395), (215, 1156805), (325, 765271), (481, 517075), (559, 444925), (845, 294335), (925, 268879), (1075, 231361), (1369, 181675), (1591, 156325), (2405, 103415), (2795, 88985), (4225, 58867), (6253, 39775), (6845, 36335), (7267, 34225), (7955, 31265), (12025, 20683), (13975, 17797)]