256238080

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 160

約数和(自身を含む): 714954240

約数和(自身を除く): 458716160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 112, 128, 140, 158, 160, 181, 224, 256, 280, 316, 320, 362, 395, 448, 512, 553, 560, 632, 640, 724, 790, 896, 905, 1106, 1120, 1264, 1267, 1280, 1448, 1580, 1792, 1810, 2212, 2240, 2528, 2534, 2560, 2765, 2896, 3160, 3584, 3620, 4424, 4480, 5056, 5068, 5530, 5792, 6320, 6335, 7240, 8848, 8960, 10112, 10136, 11060, 11584, 12640, 12670, 14299, 14480, 17696, 17920, 20224, 20272, 22120, 23168, 25280, 25340, 28598, 28960, 35392, 40448, 40544, 44240, 46336, 50560, 50680, 57196, 57920, 70784, 71495, 81088, 88480, 92672, 100093, 101120, 101360, 114392, 115840, 141568, 142990, 162176, 176960, 200186, 202240, 202720, 228784, 231680, 283136, 285980, 324352, 353920, 400372, 405440, 457568, 463360, 500465, 571960, 648704, 707840, 800744, 810880, 915136, 1000930, 1143920, 1415680, 1601488, 1621760, 1830272, 2001860, 2287840, 3202976, 3243520, 3660544, 4003720, 4575680, 6405952, 7321088, 8007440, 9151360, 12811904, 16014880, 18302720, 25623808, 32029760, 36605440, 51247616, 64059520, 128119040, 256238080]

約数ペア:

[(1, 256238080), (2, 128119040), (4, 64059520), (5, 51247616), (7, 36605440), (8, 32029760), (10, 25623808), (14, 18302720), (16, 16014880), (20, 12811904), (28, 9151360), (32, 8007440), (35, 7321088), (40, 6405952), (56, 4575680), (64, 4003720), (70, 3660544), (79, 3243520), (80, 3202976), (112, 2287840), (128, 2001860), (140, 1830272), (158, 1621760), (160, 1601488), (181, 1415680), (224, 1143920), (256, 1000930), (280, 915136), (316, 810880), (320, 800744), (362, 707840), (395, 648704), (448, 571960), (512, 500465), (553, 463360), (560, 457568), (632, 405440), (640, 400372), (724, 353920), (790, 324352), (896, 285980), (905, 283136), (1106, 231680), (1120, 228784), (1264, 202720), (1267, 202240), (1280, 200186), (1448, 176960), (1580, 162176), (1792, 142990), (1810, 141568), (2212, 115840), (2240, 114392), (2528, 101360), (2534, 101120), (2560, 100093), (2765, 92672), (2896, 88480), (3160, 81088), (3584, 71495), (3620, 70784), (4424, 57920), (4480, 57196), (5056, 50680), (5068, 50560), (5530, 46336), (5792, 44240), (6320, 40544), (6335, 40448), (7240, 35392), (8848, 28960), (8960, 28598), (10112, 25340), (10136, 25280), (11060, 23168), (11584, 22120), (12640, 20272), (12670, 20224), (14299, 17920), (14480, 17696)]