19030725

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 40003392

約数和(自身を除く): 20972667

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 43, 45, 63, 75, 105, 129, 175, 215, 225, 281, 301, 315, 387, 525, 645, 843, 903, 1075, 1405, 1505, 1575, 1935, 1967, 2529, 2709, 3225, 4215, 4515, 5901, 7025, 7525, 9675, 9835, 12083, 12645, 13545, 17703, 21075, 22575, 29505, 36249, 49175, 60415, 63225, 67725, 84581, 88515, 108747, 147525, 181245, 253743, 302075, 422905, 442575, 543735, 761229, 906225, 1268715, 2114525, 2718675, 3806145, 6343575, 19030725]

約数ペア:

[(1, 19030725), (3, 6343575), (5, 3806145), (7, 2718675), (9, 2114525), (15, 1268715), (21, 906225), (25, 761229), (35, 543735), (43, 442575), (45, 422905), (63, 302075), (75, 253743), (105, 181245), (129, 147525), (175, 108747), (215, 88515), (225, 84581), (281, 67725), (301, 63225), (315, 60415), (387, 49175), (525, 36249), (645, 29505), (843, 22575), (903, 21075), (1075, 17703), (1405, 13545), (1505, 12645), (1575, 12083), (1935, 9835), (1967, 9675), (2529, 7525), (2709, 7025), (3225, 5901), (4215, 4515)]