640167840

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11399}}^1$

素因数の和:11436

約数の個数: 192

約数和(自身を含む): 2413152000

約数和(自身を除く): 1772984160

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, 2340, 2808, 3120, 3510, 3744, 4320, 4680, 5616, 6240, 7020, 9360, 11232, 11399, 14040, 18720, 22798, 28080, 34197, 45596, 56160, 56995, 68394, 91192, 102591, 113990, 136788, 148187, 170985, 182384, 205182, 227980, 273576, 296374, 307773, 341970, 364768, 410364, 444561, 455960, 512955, 547152, 592748, 615546, 683940, 740935, 820728, 889122, 911920, 1025910, 1094304, 1185496, 1231092, 1333683, 1367880, 1481870, 1538865, 1641456, 1778244, 1823840, 2051820, 2222805, 2370992, 2462184, 2667366, 2735760, 2963740, 3077730, 3282912, 3556488, 4001049, 4103640, 4445610, 4741984, 4924368, 5334732, 5471520, 5927480, 6155460, 6668415, 7112976, 8002098, 8207280, 8891220, 9848736, 10669464, 11854960, 12310920, 13336830, 14225952, 16004196, 16414560, 17782440, 20005245, 21338928, 23709920, 24621840, 26673660, 32008392, 35564880, 40010490, 42677856, 49243680, 53347320, 64016784, 71129760, 80020980, 106694640, 128033568, 160041960, 213389280, 320083920, 640167840]

約数ペア:

[(1, 640167840), (2, 320083920), (3, 213389280), (4, 160041960), (5, 128033568), (6, 106694640), (8, 80020980), (9, 71129760), (10, 64016784), (12, 53347320), (13, 49243680), (15, 42677856), (16, 40010490), (18, 35564880), (20, 32008392), (24, 26673660), (26, 24621840), (27, 23709920), (30, 21338928), (32, 20005245), (36, 17782440), (39, 16414560), (40, 16004196), (45, 14225952), (48, 13336830), (52, 12310920), (54, 11854960), (60, 10669464), (65, 9848736), (72, 8891220), (78, 8207280), (80, 8002098), (90, 7112976), (96, 6668415), (104, 6155460), (108, 5927480), (117, 5471520), (120, 5334732), (130, 4924368), (135, 4741984), (144, 4445610), (156, 4103640), (160, 4001049), (180, 3556488), (195, 3282912), (208, 3077730), (216, 2963740), (234, 2735760), (240, 2667366), (260, 2462184), (270, 2370992), (288, 2222805), (312, 2051820), (351, 1823840), (360, 1778244), (390, 1641456), (416, 1538865), (432, 1481870), (468, 1367880), (480, 1333683), (520, 1231092), (540, 1185496), (585, 1094304), (624, 1025910), (702, 911920), (720, 889122), (780, 820728), (864, 740935), (936, 683940), (1040, 615546), (1080, 592748), (1170, 547152), (1248, 512955), (1404, 455960), (1440, 444561), (1560, 410364), (1755, 364768), (1872, 341970), (2080, 307773), (2160, 296374), (2340, 273576), (2808, 227980), (3120, 205182), (3510, 182384), (3744, 170985), (4320, 148187), (4680, 136788), (5616, 113990), (6240, 102591), (7020, 91192), (9360, 68394), (11232, 56995), (11399, 56160), (14040, 45596), (18720, 34197), (22798, 28080)]