18262475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 28926720

約数和(自身を除く): 10664245

約数列:

[1, 5, 7, 11, 25, 35, 53, 55, 77, 175, 179, 265, 275, 371, 385, 583, 895, 1253, 1325, 1855, 1925, 1969, 2915, 4081, 4475, 6265, 9275, 9487, 9845, 13783, 14575, 20405, 31325, 47435, 49225, 66409, 68915, 102025, 104357, 237175, 332045, 344575, 521785, 730499, 1660225, 2608925, 3652495, 18262475]

約数ペア:

[(1, 18262475), (5, 3652495), (7, 2608925), (11, 1660225), (25, 730499), (35, 521785), (53, 344575), (55, 332045), (77, 237175), (175, 104357), (179, 102025), (265, 68915), (275, 66409), (371, 49225), (385, 47435), (583, 31325), (895, 20405), (1253, 14575), (1325, 13783), (1855, 9845), (1925, 9487), (1969, 9275), (2915, 6265), (4081, 4475)]