81342240

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:631

約数の個数: 192

約数和(自身を含む): 300174336

約数和(自身を除く): 218832096

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 43, 48, 56, 60, 70, 80, 84, 86, 96, 105, 112, 120, 129, 140, 160, 168, 172, 210, 215, 224, 240, 258, 280, 301, 336, 344, 420, 430, 480, 516, 560, 563, 602, 645, 672, 688, 840, 860, 903, 1032, 1120, 1126, 1204, 1290, 1376, 1505, 1680, 1689, 1720, 1806, 2064, 2252, 2408, 2580, 2815, 3010, 3360, 3378, 3440, 3612, 3941, 4128, 4504, 4515, 4816, 5160, 5630, 6020, 6756, 6880, 7224, 7882, 8445, 9008, 9030, 9632, 10320, 11260, 11823, 12040, 13512, 14448, 15764, 16890, 18016, 18060, 19705, 20640, 22520, 23646, 24080, 24209, 27024, 28896, 31528, 33780, 36120, 39410, 45040, 47292, 48160, 48418, 54048, 59115, 63056, 67560, 72240, 72627, 78820, 90080, 94584, 96836, 118230, 121045, 126112, 135120, 144480, 145254, 157640, 169463, 189168, 193672, 236460, 242090, 270240, 290508, 315280, 338926, 363135, 378336, 387344, 472920, 484180, 508389, 581016, 630560, 677852, 726270, 774688, 847315, 945840, 968360, 1016778, 1162032, 1355704, 1452540, 1694630, 1891680, 1936720, 2033556, 2324064, 2541945, 2711408, 2905080, 3389260, 3873440, 4067112, 5083890, 5422816, 5810160, 6778520, 8134224, 10167780, 11620320, 13557040, 16268448, 20335560, 27114080, 40671120, 81342240]

約数ペア:

[(1, 81342240), (2, 40671120), (3, 27114080), (4, 20335560), (5, 16268448), (6, 13557040), (7, 11620320), (8, 10167780), (10, 8134224), (12, 6778520), (14, 5810160), (15, 5422816), (16, 5083890), (20, 4067112), (21, 3873440), (24, 3389260), (28, 2905080), (30, 2711408), (32, 2541945), (35, 2324064), (40, 2033556), (42, 1936720), (43, 1891680), (48, 1694630), (56, 1452540), (60, 1355704), (70, 1162032), (80, 1016778), (84, 968360), (86, 945840), (96, 847315), (105, 774688), (112, 726270), (120, 677852), (129, 630560), (140, 581016), (160, 508389), (168, 484180), (172, 472920), (210, 387344), (215, 378336), (224, 363135), (240, 338926), (258, 315280), (280, 290508), (301, 270240), (336, 242090), (344, 236460), (420, 193672), (430, 189168), (480, 169463), (516, 157640), (560, 145254), (563, 144480), (602, 135120), (645, 126112), (672, 121045), (688, 118230), (840, 96836), (860, 94584), (903, 90080), (1032, 78820), (1120, 72627), (1126, 72240), (1204, 67560), (1290, 63056), (1376, 59115), (1505, 54048), (1680, 48418), (1689, 48160), (1720, 47292), (1806, 45040), (2064, 39410), (2252, 36120), (2408, 33780), (2580, 31528), (2815, 28896), (3010, 27024), (3360, 24209), (3378, 24080), (3440, 23646), (3612, 22520), (3941, 20640), (4128, 19705), (4504, 18060), (4515, 18016), (4816, 16890), (5160, 15764), (5630, 14448), (6020, 13512), (6756, 12040), (6880, 11823), (7224, 11260), (7882, 10320), (8445, 9632), (9008, 9030)]