82720620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2539}}^1$

素因数の和:2735

約数の個数: 72

約数和(自身を含む): 252404880

約数和(自身を除く): 169684260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1629, 1810, 2172, 2539, 2715, 3258, 3620, 5078, 5430, 6516, 7617, 8145, 10156, 10860, 12695, 15234, 16290, 22851, 25390, 30468, 32580, 38085, 45702, 50780, 76170, 91404, 114255, 152340, 228510, 457020, 459559, 919118, 1378677, 1838236, 2297795, 2757354, 4136031, 4595590, 5514708, 6893385, 8272062, 9191180, 13786770, 16544124, 20680155, 27573540, 41360310, 82720620]

約数ペア:

[(1, 82720620), (2, 41360310), (3, 27573540), (4, 20680155), (5, 16544124), (6, 13786770), (9, 9191180), (10, 8272062), (12, 6893385), (15, 5514708), (18, 4595590), (20, 4136031), (30, 2757354), (36, 2297795), (45, 1838236), (60, 1378677), (90, 919118), (180, 459559), (181, 457020), (362, 228510), (543, 152340), (724, 114255), (905, 91404), (1086, 76170), (1629, 50780), (1810, 45702), (2172, 38085), (2539, 32580), (2715, 30468), (3258, 25390), (3620, 22851), (5078, 16290), (5430, 15234), (6516, 12695), (7617, 10860), (8145, 10156)]