257751360

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2941

約数の個数: 168

約数和(自身を含む): 915472896

約数和(自身を除く): 657721536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 192, 240, 248, 279, 288, 310, 320, 360, 372, 465, 480, 496, 558, 576, 620, 720, 744, 930, 960, 992, 1116, 1240, 1395, 1440, 1488, 1860, 1984, 2232, 2480, 2790, 2880, 2887, 2976, 3720, 4464, 4960, 5580, 5774, 5952, 7440, 8661, 8928, 9920, 11160, 11548, 14435, 14880, 17322, 17856, 22320, 23096, 25983, 28870, 29760, 34644, 43305, 44640, 46192, 51966, 57740, 69288, 86610, 89280, 89497, 92384, 103932, 115480, 129915, 138576, 173220, 178994, 184768, 207864, 230960, 259830, 268491, 277152, 346440, 357988, 415728, 447485, 461920, 519660, 536982, 554304, 692880, 715976, 805473, 831456, 894970, 923840, 1039320, 1073964, 1342455, 1385760, 1431952, 1610946, 1662912, 1789940, 2078640, 2147928, 2684910, 2771520, 2863904, 3221892, 3579880, 4027365, 4157280, 4295856, 5369820, 5727808, 6443784, 7159760, 8054730, 8314560, 8591712, 10739640, 12887568, 14319520, 16109460, 17183424, 21479280, 25775136, 28639040, 32218920, 42958560, 51550272, 64437840, 85917120, 128875680, 257751360]

約数ペア:

[(1, 257751360), (2, 128875680), (3, 85917120), (4, 64437840), (5, 51550272), (6, 42958560), (8, 32218920), (9, 28639040), (10, 25775136), (12, 21479280), (15, 17183424), (16, 16109460), (18, 14319520), (20, 12887568), (24, 10739640), (30, 8591712), (31, 8314560), (32, 8054730), (36, 7159760), (40, 6443784), (45, 5727808), (48, 5369820), (60, 4295856), (62, 4157280), (64, 4027365), (72, 3579880), (80, 3221892), (90, 2863904), (93, 2771520), (96, 2684910), (120, 2147928), (124, 2078640), (144, 1789940), (155, 1662912), (160, 1610946), (180, 1431952), (186, 1385760), (192, 1342455), (240, 1073964), (248, 1039320), (279, 923840), (288, 894970), (310, 831456), (320, 805473), (360, 715976), (372, 692880), (465, 554304), (480, 536982), (496, 519660), (558, 461920), (576, 447485), (620, 415728), (720, 357988), (744, 346440), (930, 277152), (960, 268491), (992, 259830), (1116, 230960), (1240, 207864), (1395, 184768), (1440, 178994), (1488, 173220), (1860, 138576), (1984, 129915), (2232, 115480), (2480, 103932), (2790, 92384), (2880, 89497), (2887, 89280), (2976, 86610), (3720, 69288), (4464, 57740), (4960, 51966), (5580, 46192), (5774, 44640), (5952, 43305), (7440, 34644), (8661, 29760), (8928, 28870), (9920, 25983), (11160, 23096), (11548, 22320), (14435, 17856), (14880, 17322)]