209995488

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:637

約数の個数: 144

約数和(自身を含む): 631927296

約数和(自身を除く): 421931808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 43, 48, 62, 72, 86, 93, 96, 124, 129, 144, 172, 186, 248, 258, 279, 288, 344, 372, 387, 496, 516, 547, 558, 688, 744, 774, 992, 1032, 1094, 1116, 1333, 1376, 1488, 1548, 1641, 2064, 2188, 2232, 2666, 2976, 3096, 3282, 3999, 4128, 4376, 4464, 4923, 5332, 6192, 6564, 7998, 8752, 8928, 9846, 10664, 11997, 12384, 13128, 15996, 16957, 17504, 19692, 21328, 23521, 23994, 26256, 31992, 33914, 39384, 42656, 47042, 47988, 50871, 52512, 63984, 67828, 70563, 78768, 94084, 95976, 101742, 127968, 135656, 141126, 152613, 157536, 188168, 191952, 203484, 211689, 271312, 282252, 305226, 376336, 383904, 406968, 423378, 542624, 564504, 610452, 729151, 752672, 813936, 846756, 1129008, 1220904, 1458302, 1627872, 1693512, 2187453, 2258016, 2441808, 2916604, 3387024, 4374906, 4883616, 5833208, 6562359, 6774048, 8749812, 11666416, 13124718, 17499624, 23332832, 26249436, 34999248, 52498872, 69998496, 104997744, 209995488]

約数ペア:

[(1, 209995488), (2, 104997744), (3, 69998496), (4, 52498872), (6, 34999248), (8, 26249436), (9, 23332832), (12, 17499624), (16, 13124718), (18, 11666416), (24, 8749812), (31, 6774048), (32, 6562359), (36, 5833208), (43, 4883616), (48, 4374906), (62, 3387024), (72, 2916604), (86, 2441808), (93, 2258016), (96, 2187453), (124, 1693512), (129, 1627872), (144, 1458302), (172, 1220904), (186, 1129008), (248, 846756), (258, 813936), (279, 752672), (288, 729151), (344, 610452), (372, 564504), (387, 542624), (496, 423378), (516, 406968), (547, 383904), (558, 376336), (688, 305226), (744, 282252), (774, 271312), (992, 211689), (1032, 203484), (1094, 191952), (1116, 188168), (1333, 157536), (1376, 152613), (1488, 141126), (1548, 135656), (1641, 127968), (2064, 101742), (2188, 95976), (2232, 94084), (2666, 78768), (2976, 70563), (3096, 67828), (3282, 63984), (3999, 52512), (4128, 50871), (4376, 47988), (4464, 47042), (4923, 42656), (5332, 39384), (6192, 33914), (6564, 31992), (7998, 26256), (8752, 23994), (8928, 23521), (9846, 21328), (10664, 19692), (11997, 17504), (12384, 16957), (13128, 15996)]