18787600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3613}}^1$

素因数の和:3644

約数の個数: 60

約数和(自身を含む): 48622756

約数和(自身を除く): 29835156

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3613, 5200, 7226, 14452, 18065, 28904, 36130, 46969, 57808, 72260, 90325, 93938, 144520, 180650, 187876, 234845, 289040, 361300, 375752, 469690, 722600, 751504, 939380, 1174225, 1445200, 1878760, 2348450, 3757520, 4696900, 9393800, 18787600]

約数ペア:

[(1, 18787600), (2, 9393800), (4, 4696900), (5, 3757520), (8, 2348450), (10, 1878760), (13, 1445200), (16, 1174225), (20, 939380), (25, 751504), (26, 722600), (40, 469690), (50, 375752), (52, 361300), (65, 289040), (80, 234845), (100, 187876), (104, 180650), (130, 144520), (200, 93938), (208, 90325), (260, 72260), (325, 57808), (400, 46969), (520, 36130), (650, 28904), (1040, 18065), (1300, 14452), (2600, 7226), (3613, 5200)]