20175900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:743

約数の個数: 72

約数和(自身を含む): 59006640

約数和(自身を除く): 38830740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 109, 150, 218, 300, 327, 436, 545, 617, 654, 1090, 1234, 1308, 1635, 1851, 2180, 2468, 2725, 3085, 3270, 3702, 5450, 6170, 6540, 7404, 8175, 9255, 10900, 12340, 15425, 16350, 18510, 30850, 32700, 37020, 46275, 61700, 67253, 92550, 134506, 185100, 201759, 269012, 336265, 403518, 672530, 807036, 1008795, 1345060, 1681325, 2017590, 3362650, 4035180, 5043975, 6725300, 10087950, 20175900]

約数ペア:

[(1, 20175900), (2, 10087950), (3, 6725300), (4, 5043975), (5, 4035180), (6, 3362650), (10, 2017590), (12, 1681325), (15, 1345060), (20, 1008795), (25, 807036), (30, 672530), (50, 403518), (60, 336265), (75, 269012), (100, 201759), (109, 185100), (150, 134506), (218, 92550), (300, 67253), (327, 61700), (436, 46275), (545, 37020), (617, 32700), (654, 30850), (1090, 18510), (1234, 16350), (1308, 15425), (1635, 12340), (1851, 10900), (2180, 9255), (2468, 8175), (2725, 7404), (3085, 6540), (3270, 6170), (3702, 5450)]