221036360

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{30871}}^1$

素因数の和:31061

約数の個数: 32

約数和(自身を含む): 500126400

約数和(自身を除く): 279090040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 30871, 61742, 123484, 154355, 246968, 308710, 617420, 1234840, 5525909, 11051818, 22103636, 27629545, 44207272, 55259090, 110518180, 221036360]

約数ペア:

[(1, 221036360), (2, 110518180), (4, 55259090), (5, 44207272), (8, 27629545), (10, 22103636), (20, 11051818), (40, 5525909), (179, 1234840), (358, 617420), (716, 308710), (895, 246968), (1432, 154355), (1790, 123484), (3580, 61742), (7160, 30871)]