30972040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1637}}^1$

素因数の和:1702

約数の個数: 64

約数和(自身を含む): 77837760

約数和(自身を除く): 46865720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1637, 1720, 1892, 2365, 3274, 3784, 4730, 6548, 8185, 9460, 13096, 16370, 18007, 18920, 32740, 36014, 65480, 70391, 72028, 90035, 140782, 144056, 180070, 281564, 351955, 360140, 563128, 703910, 720280, 774301, 1407820, 1548602, 2815640, 3097204, 3871505, 6194408, 7743010, 15486020, 30972040]

約数ペア:

[(1, 30972040), (2, 15486020), (4, 7743010), (5, 6194408), (8, 3871505), (10, 3097204), (11, 2815640), (20, 1548602), (22, 1407820), (40, 774301), (43, 720280), (44, 703910), (55, 563128), (86, 360140), (88, 351955), (110, 281564), (172, 180070), (215, 144056), (220, 140782), (344, 90035), (430, 72028), (440, 70391), (473, 65480), (860, 36014), (946, 32740), (1637, 18920), (1720, 18007), (1892, 16370), (2365, 13096), (3274, 9460), (3784, 8185), (4730, 6548)]