68490400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 144

約数和(自身を含む): 187675488

約数和(自身を除く): 119185088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 43, 44, 50, 55, 80, 86, 88, 100, 110, 160, 172, 176, 181, 200, 215, 220, 275, 344, 352, 362, 400, 430, 440, 473, 550, 688, 724, 800, 860, 880, 905, 946, 1075, 1100, 1376, 1448, 1720, 1760, 1810, 1892, 1991, 2150, 2200, 2365, 2896, 3440, 3620, 3784, 3982, 4300, 4400, 4525, 4730, 5792, 6880, 7240, 7568, 7783, 7964, 8600, 8800, 9050, 9460, 9955, 11825, 14480, 15136, 15566, 15928, 17200, 18100, 18920, 19910, 23650, 28960, 31132, 31856, 34400, 36200, 37840, 38915, 39820, 47300, 49775, 62264, 63712, 72400, 75680, 77830, 79640, 85613, 94600, 99550, 124528, 144800, 155660, 159280, 171226, 189200, 194575, 199100, 249056, 311320, 318560, 342452, 378400, 389150, 398200, 428065, 622640, 684904, 778300, 796400, 856130, 1245280, 1369808, 1556600, 1592800, 1712260, 2140325, 2739616, 3113200, 3424520, 4280650, 6226400, 6849040, 8561300, 13698080, 17122600, 34245200, 68490400]

約数ペア:

[(1, 68490400), (2, 34245200), (4, 17122600), (5, 13698080), (8, 8561300), (10, 6849040), (11, 6226400), (16, 4280650), (20, 3424520), (22, 3113200), (25, 2739616), (32, 2140325), (40, 1712260), (43, 1592800), (44, 1556600), (50, 1369808), (55, 1245280), (80, 856130), (86, 796400), (88, 778300), (100, 684904), (110, 622640), (160, 428065), (172, 398200), (176, 389150), (181, 378400), (200, 342452), (215, 318560), (220, 311320), (275, 249056), (344, 199100), (352, 194575), (362, 189200), (400, 171226), (430, 159280), (440, 155660), (473, 144800), (550, 124528), (688, 99550), (724, 94600), (800, 85613), (860, 79640), (880, 77830), (905, 75680), (946, 72400), (1075, 63712), (1100, 62264), (1376, 49775), (1448, 47300), (1720, 39820), (1760, 38915), (1810, 37840), (1892, 36200), (1991, 34400), (2150, 31856), (2200, 31132), (2365, 28960), (2896, 23650), (3440, 19910), (3620, 18920), (3784, 18100), (3982, 17200), (4300, 15928), (4400, 15566), (4525, 15136), (4730, 14480), (5792, 11825), (6880, 9955), (7240, 9460), (7568, 9050), (7783, 8800), (7964, 8600)]