1621400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 4205460

約数和(自身を除く): 2584060

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 67, 88, 100, 110, 121, 134, 200, 220, 242, 268, 275, 335, 440, 484, 536, 550, 605, 670, 737, 968, 1100, 1210, 1340, 1474, 1675, 2200, 2420, 2680, 2948, 3025, 3350, 3685, 4840, 5896, 6050, 6700, 7370, 8107, 12100, 13400, 14740, 16214, 18425, 24200, 29480, 32428, 36850, 40535, 64856, 73700, 81070, 147400, 162140, 202675, 324280, 405350, 810700, 1621400]

約数ペア:

[(1, 1621400), (2, 810700), (4, 405350), (5, 324280), (8, 202675), (10, 162140), (11, 147400), (20, 81070), (22, 73700), (25, 64856), (40, 40535), (44, 36850), (50, 32428), (55, 29480), (67, 24200), (88, 18425), (100, 16214), (110, 14740), (121, 13400), (134, 12100), (200, 8107), (220, 7370), (242, 6700), (268, 6050), (275, 5896), (335, 4840), (440, 3685), (484, 3350), (536, 3025), (550, 2948), (605, 2680), (670, 2420), (737, 2200), (968, 1675), (1100, 1474), (1210, 1340)]