19028920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{283}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 44039880

約数和(自身を除く): 25010960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 283, 328, 410, 566, 820, 1132, 1415, 1640, 1681, 2264, 2830, 3362, 5660, 6724, 8405, 11320, 11603, 13448, 16810, 23206, 33620, 46412, 58015, 67240, 92824, 116030, 232060, 464120, 475723, 951446, 1902892, 2378615, 3805784, 4757230, 9514460, 19028920]

約数ペア:

[(1, 19028920), (2, 9514460), (4, 4757230), (5, 3805784), (8, 2378615), (10, 1902892), (20, 951446), (40, 475723), (41, 464120), (82, 232060), (164, 116030), (205, 92824), (283, 67240), (328, 58015), (410, 46412), (566, 33620), (820, 23206), (1132, 16810), (1415, 13448), (1640, 11603), (1681, 11320), (2264, 8405), (2830, 6724), (3362, 5660)]