20175683940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{145757}}^1$

素因数の和:146541

約数の個数: 72

約数和(自身を含む): 61279578360

約数和(自身を除く): 41103894420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 769, 1538, 2307, 3076, 3845, 4614, 6921, 7690, 9228, 11535, 13842, 15380, 23070, 27684, 34605, 46140, 69210, 138420, 145757, 291514, 437271, 583028, 728785, 874542, 1311813, 1457570, 1749084, 2186355, 2623626, 2915140, 4372710, 5247252, 6559065, 8745420, 13118130, 26236260, 112087133, 224174266, 336261399, 448348532, 560435665, 672522798, 1008784197, 1120871330, 1345045596, 1681306995, 2017568394, 2241742660, 3362613990, 4035136788, 5043920985, 6725227980, 10087841970, 20175683940]

約数ペア:

[(1, 20175683940), (2, 10087841970), (3, 6725227980), (4, 5043920985), (5, 4035136788), (6, 3362613990), (9, 2241742660), (10, 2017568394), (12, 1681306995), (15, 1345045596), (18, 1120871330), (20, 1008784197), (30, 672522798), (36, 560435665), (45, 448348532), (60, 336261399), (90, 224174266), (180, 112087133), (769, 26236260), (1538, 13118130), (2307, 8745420), (3076, 6559065), (3845, 5247252), (4614, 4372710), (6921, 2915140), (7690, 2623626), (9228, 2186355), (11535, 1749084), (13842, 1457570), (15380, 1311813), (23070, 874542), (27684, 728785), (34605, 583028), (46140, 437271), (69210, 291514), (138420, 145757)]