20565900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{2539}}^1$

素因数の和:2565

約数の個数: 90

約数和(自身を含む): 66692780

約数和(自身を除く): 46126880

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2539, 2700, 4050, 5078, 7617, 8100, 10156, 12695, 15234, 22851, 25390, 30468, 38085, 45702, 50780, 63475, 68553, 76170, 91404, 114255, 126950, 137106, 152340, 190425, 205659, 228510, 253900, 274212, 342765, 380850, 411318, 457020, 571275, 685530, 761700, 822636, 1028295, 1142550, 1371060, 1713825, 2056590, 2285100, 3427650, 4113180, 5141475, 6855300, 10282950, 20565900]

約数ペア:

[(1, 20565900), (2, 10282950), (3, 6855300), (4, 5141475), (5, 4113180), (6, 3427650), (9, 2285100), (10, 2056590), (12, 1713825), (15, 1371060), (18, 1142550), (20, 1028295), (25, 822636), (27, 761700), (30, 685530), (36, 571275), (45, 457020), (50, 411318), (54, 380850), (60, 342765), (75, 274212), (81, 253900), (90, 228510), (100, 205659), (108, 190425), (135, 152340), (150, 137106), (162, 126950), (180, 114255), (225, 91404), (270, 76170), (300, 68553), (324, 63475), (405, 50780), (450, 45702), (540, 38085), (675, 30468), (810, 25390), (900, 22851), (1350, 15234), (1620, 12695), (2025, 10156), (2539, 8100), (2700, 7617), (4050, 5078)]