18802890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{521}}^1$

素因数の和:935

約数の個数: 48

約数和(自身を含む): 49103496

約数和(自身を除く): 30300606

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 401, 521, 802, 1042, 1203, 1563, 2005, 2406, 2605, 3126, 3609, 4010, 4689, 5210, 6015, 7218, 7815, 9378, 12030, 15630, 18045, 23445, 36090, 46890, 208921, 417842, 626763, 1044605, 1253526, 1880289, 2089210, 3133815, 3760578, 6267630, 9401445, 18802890]

約数ペア:

[(1, 18802890), (2, 9401445), (3, 6267630), (5, 3760578), (6, 3133815), (9, 2089210), (10, 1880289), (15, 1253526), (18, 1044605), (30, 626763), (45, 417842), (90, 208921), (401, 46890), (521, 36090), (802, 23445), (1042, 18045), (1203, 15630), (1563, 12030), (2005, 9378), (2406, 7815), (2605, 7218), (3126, 6015), (3609, 5210), (4010, 4689)]