2981000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{271}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 7637760

約数和(自身を除く): 4656760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 271, 275, 440, 500, 542, 550, 1000, 1084, 1100, 1355, 1375, 2168, 2200, 2710, 2750, 2981, 5420, 5500, 5962, 6775, 10840, 11000, 11924, 13550, 14905, 23848, 27100, 29810, 33875, 54200, 59620, 67750, 74525, 119240, 135500, 149050, 271000, 298100, 372625, 596200, 745250, 1490500, 2981000]

約数ペア:

[(1, 2981000), (2, 1490500), (4, 745250), (5, 596200), (8, 372625), (10, 298100), (11, 271000), (20, 149050), (22, 135500), (25, 119240), (40, 74525), (44, 67750), (50, 59620), (55, 54200), (88, 33875), (100, 29810), (110, 27100), (125, 23848), (200, 14905), (220, 13550), (250, 11924), (271, 11000), (275, 10840), (440, 6775), (500, 5962), (542, 5500), (550, 5420), (1000, 2981), (1084, 2750), (1100, 2710), (1355, 2200), (1375, 2168)]