128489920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:558

約数の個数: 112

約数和(自身を含む): 335145888

約数和(自身を除く): 206655968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 80, 104, 130, 134, 160, 208, 260, 268, 320, 335, 416, 461, 520, 536, 670, 832, 871, 922, 1040, 1072, 1340, 1742, 1844, 2080, 2144, 2305, 2680, 3484, 3688, 4160, 4288, 4355, 4610, 5360, 5993, 6968, 7376, 8710, 9220, 10720, 11986, 13936, 14752, 17420, 18440, 21440, 23972, 27872, 29504, 29965, 30887, 34840, 36880, 47944, 55744, 59930, 61774, 69680, 73760, 95888, 119860, 123548, 139360, 147520, 154435, 191776, 239720, 247096, 278720, 308870, 383552, 401531, 479440, 494192, 617740, 803062, 958880, 988384, 1235480, 1606124, 1917760, 1976768, 2007655, 2470960, 3212248, 4015310, 4941920, 6424496, 8030620, 9883840, 12848992, 16061240, 25697984, 32122480, 64244960, 128489920]

約数ペア:

[(1, 128489920), (2, 64244960), (4, 32122480), (5, 25697984), (8, 16061240), (10, 12848992), (13, 9883840), (16, 8030620), (20, 6424496), (26, 4941920), (32, 4015310), (40, 3212248), (52, 2470960), (64, 2007655), (65, 1976768), (67, 1917760), (80, 1606124), (104, 1235480), (130, 988384), (134, 958880), (160, 803062), (208, 617740), (260, 494192), (268, 479440), (320, 401531), (335, 383552), (416, 308870), (461, 278720), (520, 247096), (536, 239720), (670, 191776), (832, 154435), (871, 147520), (922, 139360), (1040, 123548), (1072, 119860), (1340, 95888), (1742, 73760), (1844, 69680), (2080, 61774), (2144, 59930), (2305, 55744), (2680, 47944), (3484, 36880), (3688, 34840), (4160, 30887), (4288, 29965), (4355, 29504), (4610, 27872), (5360, 23972), (5993, 21440), (6968, 18440), (7376, 17420), (8710, 14752), (9220, 13936), (10720, 11986)]