18513340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3203}}^1$

素因数の和:3246

約数の個数: 36

約数和(自身を含む): 41312376

約数和(自身を除く): 22799036

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3203, 5780, 6406, 12812, 16015, 32030, 54451, 64060, 108902, 217804, 272255, 544510, 925667, 1089020, 1851334, 3702668, 4628335, 9256670, 18513340]

約数ペア:

[(1, 18513340), (2, 9256670), (4, 4628335), (5, 3702668), (10, 1851334), (17, 1089020), (20, 925667), (34, 544510), (68, 272255), (85, 217804), (170, 108902), (289, 64060), (340, 54451), (578, 32030), (1156, 16015), (1445, 12812), (2890, 6406), (3203, 5780)]