31520500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{521}}^1$

素因数の和:562

約数の個数: 72

約数和(自身を含む): 75813192

約数和(自身を除く): 44292692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 484, 500, 521, 550, 605, 1042, 1100, 1210, 1375, 2084, 2420, 2605, 2750, 3025, 5210, 5500, 5731, 6050, 10420, 11462, 12100, 13025, 15125, 22924, 26050, 28655, 30250, 52100, 57310, 60500, 63041, 65125, 114620, 126082, 130250, 143275, 252164, 260500, 286550, 315205, 573100, 630410, 716375, 1260820, 1432750, 1576025, 2865500, 3152050, 6304100, 7880125, 15760250, 31520500]

約数ペア:

[(1, 31520500), (2, 15760250), (4, 7880125), (5, 6304100), (10, 3152050), (11, 2865500), (20, 1576025), (22, 1432750), (25, 1260820), (44, 716375), (50, 630410), (55, 573100), (100, 315205), (110, 286550), (121, 260500), (125, 252164), (220, 143275), (242, 130250), (250, 126082), (275, 114620), (484, 65125), (500, 63041), (521, 60500), (550, 57310), (605, 52100), (1042, 30250), (1100, 28655), (1210, 26050), (1375, 22924), (2084, 15125), (2420, 13025), (2605, 12100), (2750, 11462), (3025, 10420), (5210, 6050), (5500, 5731)]