128437920

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2287}}^1$

素因数の和:2324

約数の個数: 192

約数和(自身を含む): 484323840

約数和(自身を除く): 355885920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 351, 360, 390, 416, 432, 468, 480, 520, 540, 585, 624, 702, 720, 780, 864, 936, 1040, 1080, 1170, 1248, 1404, 1440, 1560, 1755, 1872, 2080, 2160, 2287, 2340, 2808, 3120, 3510, 3744, 4320, 4574, 4680, 5616, 6240, 6861, 7020, 9148, 9360, 11232, 11435, 13722, 14040, 18296, 18720, 20583, 22870, 27444, 28080, 29731, 34305, 36592, 41166, 45740, 54888, 56160, 59462, 61749, 68610, 73184, 82332, 89193, 91480, 102915, 109776, 118924, 123498, 137220, 148655, 164664, 178386, 182960, 205830, 219552, 237848, 246996, 267579, 274440, 297310, 308745, 329328, 356772, 365920, 411660, 445965, 475696, 493992, 535158, 548880, 594620, 617490, 658656, 713544, 802737, 823320, 891930, 951392, 987984, 1070316, 1097760, 1189240, 1234980, 1337895, 1427088, 1605474, 1646640, 1783860, 1975968, 2140632, 2378480, 2469960, 2675790, 2854176, 3210948, 3293280, 3567720, 4013685, 4281264, 4756960, 4939920, 5351580, 6421896, 7135440, 8027370, 8562528, 9879840, 10703160, 12843792, 14270880, 16054740, 21406320, 25687584, 32109480, 42812640, 64218960, 128437920]

約数ペア:

[(1, 128437920), (2, 64218960), (3, 42812640), (4, 32109480), (5, 25687584), (6, 21406320), (8, 16054740), (9, 14270880), (10, 12843792), (12, 10703160), (13, 9879840), (15, 8562528), (16, 8027370), (18, 7135440), (20, 6421896), (24, 5351580), (26, 4939920), (27, 4756960), (30, 4281264), (32, 4013685), (36, 3567720), (39, 3293280), (40, 3210948), (45, 2854176), (48, 2675790), (52, 2469960), (54, 2378480), (60, 2140632), (65, 1975968), (72, 1783860), (78, 1646640), (80, 1605474), (90, 1427088), (96, 1337895), (104, 1234980), (108, 1189240), (117, 1097760), (120, 1070316), (130, 987984), (135, 951392), (144, 891930), (156, 823320), (160, 802737), (180, 713544), (195, 658656), (208, 617490), (216, 594620), (234, 548880), (240, 535158), (260, 493992), (270, 475696), (288, 445965), (312, 411660), (351, 365920), (360, 356772), (390, 329328), (416, 308745), (432, 297310), (468, 274440), (480, 267579), (520, 246996), (540, 237848), (585, 219552), (624, 205830), (702, 182960), (720, 178386), (780, 164664), (864, 148655), (936, 137220), (1040, 123498), (1080, 118924), (1170, 109776), (1248, 102915), (1404, 91480), (1440, 89193), (1560, 82332), (1755, 73184), (1872, 68610), (2080, 61749), (2160, 59462), (2287, 56160), (2340, 54888), (2808, 45740), (3120, 41166), (3510, 36592), (3744, 34305), (4320, 29731), (4574, 28080), (4680, 27444), (5616, 22870), (6240, 20583), (6861, 18720), (7020, 18296), (9148, 14040), (9360, 13722), (11232, 11435)]