20937400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 54996480

約数和(自身を除く): 34059080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 31, 40, 44, 50, 55, 62, 88, 100, 110, 124, 155, 200, 220, 248, 275, 307, 310, 341, 440, 550, 614, 620, 682, 775, 1100, 1228, 1240, 1364, 1535, 1550, 1705, 2200, 2456, 2728, 3070, 3100, 3377, 3410, 6140, 6200, 6754, 6820, 7675, 8525, 9517, 12280, 13508, 13640, 15350, 16885, 17050, 19034, 27016, 30700, 33770, 34100, 38068, 47585, 61400, 67540, 68200, 76136, 84425, 95170, 104687, 135080, 168850, 190340, 209374, 237925, 337700, 380680, 418748, 475850, 523435, 675400, 837496, 951700, 1046870, 1903400, 2093740, 2617175, 4187480, 5234350, 10468700, 20937400]

約数ペア:

[(1, 20937400), (2, 10468700), (4, 5234350), (5, 4187480), (8, 2617175), (10, 2093740), (11, 1903400), (20, 1046870), (22, 951700), (25, 837496), (31, 675400), (40, 523435), (44, 475850), (50, 418748), (55, 380680), (62, 337700), (88, 237925), (100, 209374), (110, 190340), (124, 168850), (155, 135080), (200, 104687), (220, 95170), (248, 84425), (275, 76136), (307, 68200), (310, 67540), (341, 61400), (440, 47585), (550, 38068), (614, 34100), (620, 33770), (682, 30700), (775, 27016), (1100, 19034), (1228, 17050), (1240, 16885), (1364, 15350), (1535, 13640), (1550, 13508), (1705, 12280), (2200, 9517), (2456, 8525), (2728, 7675), (3070, 6820), (3100, 6754), (3377, 6200), (3410, 6140)]