1423400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{647}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 3615840

約数和(自身を除く): 2192440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 647, 1100, 1294, 2200, 2588, 3235, 5176, 6470, 7117, 12940, 14234, 16175, 25880, 28468, 32350, 35585, 56936, 64700, 71170, 129400, 142340, 177925, 284680, 355850, 711700, 1423400]

約数ペア:

[(1, 1423400), (2, 711700), (4, 355850), (5, 284680), (8, 177925), (10, 142340), (11, 129400), (20, 71170), (22, 64700), (25, 56936), (40, 35585), (44, 32350), (50, 28468), (55, 25880), (88, 16175), (100, 14234), (110, 12940), (200, 7117), (220, 6470), (275, 5176), (440, 3235), (550, 2588), (647, 2200), (1100, 1294)]