18213900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 53277840

約数和(自身を除く): 35063940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 109, 150, 218, 300, 327, 436, 545, 557, 654, 1090, 1114, 1308, 1635, 1671, 2180, 2228, 2725, 2785, 3270, 3342, 5450, 5570, 6540, 6684, 8175, 8355, 10900, 11140, 13925, 16350, 16710, 27850, 32700, 33420, 41775, 55700, 60713, 83550, 121426, 167100, 182139, 242852, 303565, 364278, 607130, 728556, 910695, 1214260, 1517825, 1821390, 3035650, 3642780, 4553475, 6071300, 9106950, 18213900]

約数ペア:

[(1, 18213900), (2, 9106950), (3, 6071300), (4, 4553475), (5, 3642780), (6, 3035650), (10, 1821390), (12, 1517825), (15, 1214260), (20, 910695), (25, 728556), (30, 607130), (50, 364278), (60, 303565), (75, 242852), (100, 182139), (109, 167100), (150, 121426), (218, 83550), (300, 60713), (327, 55700), (436, 41775), (545, 33420), (557, 32700), (654, 27850), (1090, 16710), (1114, 16350), (1308, 13925), (1635, 11140), (1671, 10900), (2180, 8355), (2228, 8175), (2725, 6684), (2785, 6540), (3270, 5570), (3342, 5450)]