251871760

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 160

約数和(自身を含む): 698169600

約数和(自身を除く): 446297840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 67, 70, 80, 98, 112, 134, 137, 140, 196, 245, 268, 274, 280, 335, 343, 392, 469, 490, 536, 548, 560, 670, 685, 686, 784, 938, 959, 980, 1072, 1096, 1340, 1370, 1372, 1715, 1876, 1918, 1960, 2192, 2345, 2680, 2740, 2744, 3283, 3430, 3752, 3836, 3920, 4690, 4795, 5360, 5480, 5488, 6566, 6713, 6860, 7504, 7672, 9179, 9380, 9590, 10960, 13132, 13426, 13720, 15344, 16415, 18358, 18760, 19180, 22981, 26264, 26852, 27440, 32830, 33565, 36716, 37520, 38360, 45895, 45962, 46991, 52528, 53704, 64253, 65660, 67130, 73432, 76720, 91790, 91924, 93982, 107408, 114905, 128506, 131320, 134260, 146864, 183580, 183848, 187964, 229810, 234955, 257012, 262640, 268520, 321265, 367160, 367696, 375928, 449771, 459620, 469910, 514024, 537040, 642530, 734320, 751856, 899542, 919240, 939820, 1028048, 1285060, 1799084, 1838480, 1879640, 2248855, 2570120, 3148397, 3598168, 3759280, 4497710, 5140240, 6296794, 7196336, 8995420, 12593588, 15741985, 17990840, 25187176, 31483970, 35981680, 50374352, 62967940, 125935880, 251871760]

約数ペア:

[(1, 251871760), (2, 125935880), (4, 62967940), (5, 50374352), (7, 35981680), (8, 31483970), (10, 25187176), (14, 17990840), (16, 15741985), (20, 12593588), (28, 8995420), (35, 7196336), (40, 6296794), (49, 5140240), (56, 4497710), (67, 3759280), (70, 3598168), (80, 3148397), (98, 2570120), (112, 2248855), (134, 1879640), (137, 1838480), (140, 1799084), (196, 1285060), (245, 1028048), (268, 939820), (274, 919240), (280, 899542), (335, 751856), (343, 734320), (392, 642530), (469, 537040), (490, 514024), (536, 469910), (548, 459620), (560, 449771), (670, 375928), (685, 367696), (686, 367160), (784, 321265), (938, 268520), (959, 262640), (980, 257012), (1072, 234955), (1096, 229810), (1340, 187964), (1370, 183848), (1372, 183580), (1715, 146864), (1876, 134260), (1918, 131320), (1960, 128506), (2192, 114905), (2345, 107408), (2680, 93982), (2740, 91924), (2744, 91790), (3283, 76720), (3430, 73432), (3752, 67130), (3836, 65660), (3920, 64253), (4690, 53704), (4795, 52528), (5360, 46991), (5480, 45962), (5488, 45895), (6566, 38360), (6713, 37520), (6860, 36716), (7504, 33565), (7672, 32830), (9179, 27440), (9380, 26852), (9590, 26264), (10960, 22981), (13132, 19180), (13426, 18760), (13720, 18358), (15344, 16415)]