20005440

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:269

約数の個数: 224

約数和(自身を含む): 78516480

約数和(自身を除く): 58511040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 64, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 192, 195, 208, 210, 224, 229, 240, 260, 273, 280, 312, 320, 336, 364, 390, 416, 420, 448, 455, 458, 480, 520, 546, 560, 624, 672, 687, 728, 780, 832, 840, 910, 916, 960, 1040, 1092, 1120, 1145, 1248, 1344, 1365, 1374, 1456, 1560, 1603, 1680, 1820, 1832, 2080, 2184, 2240, 2290, 2496, 2730, 2748, 2912, 2977, 3120, 3206, 3360, 3435, 3640, 3664, 4160, 4368, 4580, 4809, 5460, 5496, 5824, 5954, 6240, 6412, 6720, 6870, 7280, 7328, 8015, 8736, 8931, 9160, 9618, 10920, 10992, 11908, 12480, 12824, 13740, 14560, 14656, 14885, 16030, 17472, 17862, 18320, 19236, 20839, 21840, 21984, 23816, 24045, 25648, 27480, 29120, 29770, 32060, 35724, 36640, 38472, 41678, 43680, 43968, 44655, 47632, 48090, 51296, 54960, 59540, 62517, 64120, 71448, 73280, 76944, 83356, 87360, 89310, 95264, 96180, 102592, 104195, 109920, 119080, 125034, 128240, 142896, 153888, 166712, 178620, 190528, 192360, 208390, 219840, 238160, 250068, 256480, 285792, 307776, 312585, 333424, 357240, 384720, 416780, 476320, 500136, 512960, 571584, 625170, 666848, 714480, 769440, 833560, 952640, 1000272, 1250340, 1333696, 1428960, 1538880, 1667120, 2000544, 2500680, 2857920, 3334240, 4001088, 5001360, 6668480, 10002720, 20005440]

約数ペア:

[(1, 20005440), (2, 10002720), (3, 6668480), (4, 5001360), (5, 4001088), (6, 3334240), (7, 2857920), (8, 2500680), (10, 2000544), (12, 1667120), (13, 1538880), (14, 1428960), (15, 1333696), (16, 1250340), (20, 1000272), (21, 952640), (24, 833560), (26, 769440), (28, 714480), (30, 666848), (32, 625170), (35, 571584), (39, 512960), (40, 500136), (42, 476320), (48, 416780), (52, 384720), (56, 357240), (60, 333424), (64, 312585), (65, 307776), (70, 285792), (78, 256480), (80, 250068), (84, 238160), (91, 219840), (96, 208390), (104, 192360), (105, 190528), (112, 178620), (120, 166712), (130, 153888), (140, 142896), (156, 128240), (160, 125034), (168, 119080), (182, 109920), (192, 104195), (195, 102592), (208, 96180), (210, 95264), (224, 89310), (229, 87360), (240, 83356), (260, 76944), (273, 73280), (280, 71448), (312, 64120), (320, 62517), (336, 59540), (364, 54960), (390, 51296), (416, 48090), (420, 47632), (448, 44655), (455, 43968), (458, 43680), (480, 41678), (520, 38472), (546, 36640), (560, 35724), (624, 32060), (672, 29770), (687, 29120), (728, 27480), (780, 25648), (832, 24045), (840, 23816), (910, 21984), (916, 21840), (960, 20839), (1040, 19236), (1092, 18320), (1120, 17862), (1145, 17472), (1248, 16030), (1344, 14885), (1365, 14656), (1374, 14560), (1456, 13740), (1560, 12824), (1603, 12480), (1680, 11908), (1820, 10992), (1832, 10920), (2080, 9618), (2184, 9160), (2240, 8931), (2290, 8736), (2496, 8015), (2730, 7328), (2748, 7280), (2912, 6870), (2977, 6720), (3120, 6412), (3206, 6240), (3360, 5954), (3435, 5824), (3640, 5496), (3664, 5460), (4160, 4809), (4368, 4580)]