128875680

素因数分解:

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

素因数の和:2939

約数の個数: 144

約数和(自身を含む): 454132224

約数和(自身を除く): 325256544

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, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 480, 496, 558, 620, 720, 744, 930, 992, 1116, 1240, 1395, 1440, 1488, 1860, 2232, 2480, 2790, 2887, 2976, 3720, 4464, 4960, 5580, 5774, 7440, 8661, 8928, 11160, 11548, 14435, 14880, 17322, 22320, 23096, 25983, 28870, 34644, 43305, 44640, 46192, 51966, 57740, 69288, 86610, 89497, 92384, 103932, 115480, 129915, 138576, 173220, 178994, 207864, 230960, 259830, 268491, 277152, 346440, 357988, 415728, 447485, 461920, 519660, 536982, 692880, 715976, 805473, 831456, 894970, 1039320, 1073964, 1342455, 1385760, 1431952, 1610946, 1789940, 2078640, 2147928, 2684910, 2863904, 3221892, 3579880, 4027365, 4157280, 4295856, 5369820, 6443784, 7159760, 8054730, 8591712, 10739640, 12887568, 14319520, 16109460, 21479280, 25775136, 32218920, 42958560, 64437840, 128875680]

約数ペア:

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