81956280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2269}}^1$

素因数の和:2333

約数の個数: 128

約数和(自身を含む): 287654400

約数和(自身を除く): 205698120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 602, 645, 840, 860, 903, 1032, 1204, 1290, 1505, 1720, 1806, 2269, 2408, 2580, 3010, 3612, 4515, 4538, 5160, 6020, 6807, 7224, 9030, 9076, 11345, 12040, 13614, 15883, 18060, 18152, 22690, 27228, 31766, 34035, 36120, 45380, 47649, 54456, 63532, 68070, 79415, 90760, 95298, 97567, 127064, 136140, 158830, 190596, 195134, 238245, 272280, 292701, 317660, 381192, 390268, 476490, 487835, 585402, 635320, 682969, 780536, 952980, 975670, 1170804, 1365938, 1463505, 1905960, 1951340, 2048907, 2341608, 2731876, 2927010, 3414845, 3902680, 4097814, 5463752, 5854020, 6829690, 8195628, 10244535, 11708040, 13659380, 16391256, 20489070, 27318760, 40978140, 81956280]

約数ペア:

[(1, 81956280), (2, 40978140), (3, 27318760), (4, 20489070), (5, 16391256), (6, 13659380), (7, 11708040), (8, 10244535), (10, 8195628), (12, 6829690), (14, 5854020), (15, 5463752), (20, 4097814), (21, 3902680), (24, 3414845), (28, 2927010), (30, 2731876), (35, 2341608), (40, 2048907), (42, 1951340), (43, 1905960), (56, 1463505), (60, 1365938), (70, 1170804), (84, 975670), (86, 952980), (105, 780536), (120, 682969), (129, 635320), (140, 585402), (168, 487835), (172, 476490), (210, 390268), (215, 381192), (258, 317660), (280, 292701), (301, 272280), (344, 238245), (420, 195134), (430, 190596), (516, 158830), (602, 136140), (645, 127064), (840, 97567), (860, 95298), (903, 90760), (1032, 79415), (1204, 68070), (1290, 63532), (1505, 54456), (1720, 47649), (1806, 45380), (2269, 36120), (2408, 34035), (2580, 31766), (3010, 27228), (3612, 22690), (4515, 18152), (4538, 18060), (5160, 15883), (6020, 13614), (6807, 12040), (7224, 11345), (9030, 9076)]