128423680

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1303}}^1$

素因数の和:1342

約数の個数: 144

約数和(自身を含む): 383814144

約数和(自身を除く): 255390464

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 256, 280, 308, 320, 352, 385, 440, 448, 560, 616, 640, 704, 770, 880, 896, 1120, 1232, 1280, 1303, 1408, 1540, 1760, 1792, 2240, 2464, 2606, 2816, 3080, 3520, 4480, 4928, 5212, 6160, 6515, 7040, 8960, 9121, 9856, 10424, 12320, 13030, 14080, 14333, 18242, 19712, 20848, 24640, 26060, 28666, 36484, 41696, 45605, 49280, 52120, 57332, 71665, 72968, 83392, 91210, 98560, 100331, 104240, 114664, 143330, 145936, 166784, 182420, 200662, 208480, 229328, 286660, 291872, 333568, 364840, 401324, 416960, 458656, 501655, 573320, 583744, 729680, 802648, 833920, 917312, 1003310, 1146640, 1167488, 1459360, 1605296, 1667840, 1834624, 2006620, 2293280, 2334976, 2918720, 3210592, 3669248, 4013240, 4586560, 5837440, 6421184, 8026480, 9173120, 11674880, 12842368, 16052960, 18346240, 25684736, 32105920, 64211840, 128423680]

約数ペア:

[(1, 128423680), (2, 64211840), (4, 32105920), (5, 25684736), (7, 18346240), (8, 16052960), (10, 12842368), (11, 11674880), (14, 9173120), (16, 8026480), (20, 6421184), (22, 5837440), (28, 4586560), (32, 4013240), (35, 3669248), (40, 3210592), (44, 2918720), (55, 2334976), (56, 2293280), (64, 2006620), (70, 1834624), (77, 1667840), (80, 1605296), (88, 1459360), (110, 1167488), (112, 1146640), (128, 1003310), (140, 917312), (154, 833920), (160, 802648), (176, 729680), (220, 583744), (224, 573320), (256, 501655), (280, 458656), (308, 416960), (320, 401324), (352, 364840), (385, 333568), (440, 291872), (448, 286660), (560, 229328), (616, 208480), (640, 200662), (704, 182420), (770, 166784), (880, 145936), (896, 143330), (1120, 114664), (1232, 104240), (1280, 100331), (1303, 98560), (1408, 91210), (1540, 83392), (1760, 72968), (1792, 71665), (2240, 57332), (2464, 52120), (2606, 49280), (2816, 45605), (3080, 41696), (3520, 36484), (4480, 28666), (4928, 26060), (5212, 24640), (6160, 20848), (6515, 19712), (7040, 18242), (8960, 14333), (9121, 14080), (9856, 13030), (10424, 12320)]