25216400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 90

約数和(自身を含む): 66718386

約数和(自身を除く): 41501986

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 121, 176, 200, 220, 242, 275, 400, 440, 484, 521, 550, 605, 880, 968, 1042, 1100, 1210, 1936, 2084, 2200, 2420, 2605, 3025, 4168, 4400, 4840, 5210, 5731, 6050, 8336, 9680, 10420, 11462, 12100, 13025, 20840, 22924, 24200, 26050, 28655, 41680, 45848, 48400, 52100, 57310, 63041, 91696, 104200, 114620, 126082, 143275, 208400, 229240, 252164, 286550, 315205, 458480, 504328, 573100, 630410, 1008656, 1146200, 1260820, 1576025, 2292400, 2521640, 3152050, 5043280, 6304100, 12608200, 25216400]

約数ペア:

[(1, 25216400), (2, 12608200), (4, 6304100), (5, 5043280), (8, 3152050), (10, 2521640), (11, 2292400), (16, 1576025), (20, 1260820), (22, 1146200), (25, 1008656), (40, 630410), (44, 573100), (50, 504328), (55, 458480), (80, 315205), (88, 286550), (100, 252164), (110, 229240), (121, 208400), (176, 143275), (200, 126082), (220, 114620), (242, 104200), (275, 91696), (400, 63041), (440, 57310), (484, 52100), (521, 48400), (550, 45848), (605, 41680), (880, 28655), (968, 26050), (1042, 24200), (1100, 22924), (1210, 20840), (1936, 13025), (2084, 12100), (2200, 11462), (2420, 10420), (2605, 9680), (3025, 8336), (4168, 6050), (4400, 5731), (4840, 5210)]