19771400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 54423600

約数和(自身を除く): 34652200

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 25, 38, 40, 43, 44, 50, 55, 76, 86, 88, 95, 100, 110, 121, 152, 172, 190, 200, 209, 215, 220, 242, 275, 344, 380, 418, 430, 440, 473, 475, 484, 550, 605, 760, 817, 836, 860, 946, 950, 968, 1045, 1075, 1100, 1210, 1634, 1672, 1720, 1892, 1900, 2090, 2150, 2200, 2299, 2365, 2420, 3025, 3268, 3784, 3800, 4085, 4180, 4300, 4598, 4730, 4840, 5203, 5225, 6050, 6536, 8170, 8360, 8600, 8987, 9196, 9460, 10406, 10450, 11495, 11825, 12100, 16340, 17974, 18392, 18920, 20425, 20812, 20900, 22990, 23650, 24200, 26015, 32680, 35948, 40850, 41624, 41800, 44935, 45980, 47300, 52030, 57475, 71896, 81700, 89870, 91960, 94600, 98857, 104060, 114950, 130075, 163400, 179740, 197714, 208120, 224675, 229900, 260150, 359480, 395428, 449350, 459800, 494285, 520300, 790856, 898700, 988570, 1040600, 1797400, 1977140, 2471425, 3954280, 4942850, 9885700, 19771400]

約数ペア:

[(1, 19771400), (2, 9885700), (4, 4942850), (5, 3954280), (8, 2471425), (10, 1977140), (11, 1797400), (19, 1040600), (20, 988570), (22, 898700), (25, 790856), (38, 520300), (40, 494285), (43, 459800), (44, 449350), (50, 395428), (55, 359480), (76, 260150), (86, 229900), (88, 224675), (95, 208120), (100, 197714), (110, 179740), (121, 163400), (152, 130075), (172, 114950), (190, 104060), (200, 98857), (209, 94600), (215, 91960), (220, 89870), (242, 81700), (275, 71896), (344, 57475), (380, 52030), (418, 47300), (430, 45980), (440, 44935), (473, 41800), (475, 41624), (484, 40850), (550, 35948), (605, 32680), (760, 26015), (817, 24200), (836, 23650), (860, 22990), (946, 20900), (950, 20812), (968, 20425), (1045, 18920), (1075, 18392), (1100, 17974), (1210, 16340), (1634, 12100), (1672, 11825), (1720, 11495), (1892, 10450), (1900, 10406), (2090, 9460), (2150, 9196), (2200, 8987), (2299, 8600), (2365, 8360), (2420, 8170), (3025, 6536), (3268, 6050), (3784, 5225), (3800, 5203), (4085, 4840), (4180, 4730), (4300, 4598)]