42981975

素因数分解:

$3^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{1721}}^1$

素因数の和:1777

約数の個数: 48

約数和(自身を含む): 81140640

約数和(自身を除く): 38158665

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 111, 135, 185, 225, 333, 555, 675, 925, 999, 1665, 1721, 2775, 4995, 5163, 8325, 8605, 15489, 24975, 25815, 43025, 46467, 63677, 77445, 129075, 191031, 232335, 318385, 387225, 573093, 955155, 1161675, 1591925, 1719279, 2865465, 4775775, 8596395, 14327325, 42981975]

約数ペア:

[(1, 42981975), (3, 14327325), (5, 8596395), (9, 4775775), (15, 2865465), (25, 1719279), (27, 1591925), (37, 1161675), (45, 955155), (75, 573093), (111, 387225), (135, 318385), (185, 232335), (225, 191031), (333, 129075), (555, 77445), (675, 63677), (925, 46467), (999, 43025), (1665, 25815), (1721, 24975), (2775, 15489), (4995, 8605), (5163, 8325)]