217890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{269}}^1$

素因数の和:288

約数の個数: 40

約数和(自身を含む): 588060

約数和(自身を除く): 370170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 269, 270, 405, 538, 807, 810, 1345, 1614, 2421, 2690, 4035, 4842, 7263, 8070, 12105, 14526, 21789, 24210, 36315, 43578, 72630, 108945, 217890]

約数ペア:

[(1, 217890), (2, 108945), (3, 72630), (5, 43578), (6, 36315), (9, 24210), (10, 21789), (15, 14526), (18, 12105), (27, 8070), (30, 7263), (45, 4842), (54, 4035), (81, 2690), (90, 2421), (135, 1614), (162, 1345), (269, 810), (270, 807), (405, 538)]