685184320

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:321

約数の個数: 168

約数和(自身を含む): 1796613120

約数和(自身を除く): 1111428800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 136, 155, 160, 170, 239, 248, 272, 289, 310, 320, 340, 478, 496, 527, 544, 578, 620, 680, 956, 992, 1054, 1088, 1156, 1195, 1240, 1360, 1445, 1912, 1984, 2108, 2312, 2390, 2480, 2635, 2720, 2890, 3824, 4063, 4216, 4624, 4780, 4960, 5270, 5440, 5780, 7409, 7648, 8126, 8432, 8959, 9248, 9560, 9920, 10540, 11560, 14818, 15296, 16252, 16864, 17918, 18496, 19120, 20315, 21080, 23120, 29636, 32504, 33728, 35836, 37045, 38240, 40630, 42160, 44795, 46240, 59272, 65008, 69071, 71672, 74090, 76480, 81260, 84320, 89590, 92480, 118544, 125953, 130016, 138142, 143344, 148180, 162520, 168640, 179180, 237088, 251906, 260032, 276284, 286688, 296360, 325040, 345355, 358360, 474176, 503812, 552568, 573376, 592720, 629765, 650080, 690710, 716720, 1007624, 1105136, 1185440, 1259530, 1300160, 1381420, 1433440, 2015248, 2141201, 2210272, 2370880, 2519060, 2762840, 2866880, 4030496, 4282402, 4420544, 5038120, 5525680, 8060992, 8564804, 10076240, 10706005, 11051360, 17129608, 20152480, 21412010, 22102720, 34259216, 40304960, 42824020, 68518432, 85648040, 137036864, 171296080, 342592160, 685184320]

約数ペア:

[(1, 685184320), (2, 342592160), (4, 171296080), (5, 137036864), (8, 85648040), (10, 68518432), (16, 42824020), (17, 40304960), (20, 34259216), (31, 22102720), (32, 21412010), (34, 20152480), (40, 17129608), (62, 11051360), (64, 10706005), (68, 10076240), (80, 8564804), (85, 8060992), (124, 5525680), (136, 5038120), (155, 4420544), (160, 4282402), (170, 4030496), (239, 2866880), (248, 2762840), (272, 2519060), (289, 2370880), (310, 2210272), (320, 2141201), (340, 2015248), (478, 1433440), (496, 1381420), (527, 1300160), (544, 1259530), (578, 1185440), (620, 1105136), (680, 1007624), (956, 716720), (992, 690710), (1054, 650080), (1088, 629765), (1156, 592720), (1195, 573376), (1240, 552568), (1360, 503812), (1445, 474176), (1912, 358360), (1984, 345355), (2108, 325040), (2312, 296360), (2390, 286688), (2480, 276284), (2635, 260032), (2720, 251906), (2890, 237088), (3824, 179180), (4063, 168640), (4216, 162520), (4624, 148180), (4780, 143344), (4960, 138142), (5270, 130016), (5440, 125953), (5780, 118544), (7409, 92480), (7648, 89590), (8126, 84320), (8432, 81260), (8959, 76480), (9248, 74090), (9560, 71672), (9920, 69071), (10540, 65008), (11560, 59272), (14818, 46240), (15296, 44795), (16252, 42160), (16864, 40630), (17918, 38240), (18496, 37045), (19120, 35836), (20315, 33728), (21080, 32504), (23120, 29636)]