161127680

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{367}}^1$

素因数の和:409

約数の個数: 144

約数和(自身を含む): 451315200

約数和(自身を除く): 290187520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 343, 367, 392, 448, 490, 560, 640, 686, 734, 784, 896, 980, 1120, 1280, 1372, 1468, 1568, 1715, 1792, 1835, 1960, 2240, 2569, 2744, 2936, 3136, 3430, 3670, 3920, 4480, 5138, 5488, 5872, 6272, 6860, 7340, 7840, 8960, 10276, 10976, 11744, 12544, 12845, 13720, 14680, 15680, 17983, 20552, 21952, 23488, 25690, 27440, 29360, 31360, 35966, 41104, 43904, 46976, 51380, 54880, 58720, 62720, 71932, 82208, 87808, 89915, 93952, 102760, 109760, 117440, 125881, 143864, 164416, 179830, 205520, 219520, 234880, 251762, 287728, 328832, 359660, 411040, 439040, 469760, 503524, 575456, 629405, 657664, 719320, 822080, 1007048, 1150912, 1258810, 1438640, 1644160, 2014096, 2301824, 2517620, 2877280, 3288320, 4028192, 4603648, 5035240, 5754560, 8056384, 10070480, 11509120, 16112768, 20140960, 23018240, 32225536, 40281920, 80563840, 161127680]

約数ペア:

[(1, 161127680), (2, 80563840), (4, 40281920), (5, 32225536), (7, 23018240), (8, 20140960), (10, 16112768), (14, 11509120), (16, 10070480), (20, 8056384), (28, 5754560), (32, 5035240), (35, 4603648), (40, 4028192), (49, 3288320), (56, 2877280), (64, 2517620), (70, 2301824), (80, 2014096), (98, 1644160), (112, 1438640), (128, 1258810), (140, 1150912), (160, 1007048), (196, 822080), (224, 719320), (245, 657664), (256, 629405), (280, 575456), (320, 503524), (343, 469760), (367, 439040), (392, 411040), (448, 359660), (490, 328832), (560, 287728), (640, 251762), (686, 234880), (734, 219520), (784, 205520), (896, 179830), (980, 164416), (1120, 143864), (1280, 125881), (1372, 117440), (1468, 109760), (1568, 102760), (1715, 93952), (1792, 89915), (1835, 87808), (1960, 82208), (2240, 71932), (2569, 62720), (2744, 58720), (2936, 54880), (3136, 51380), (3430, 46976), (3670, 43904), (3920, 41104), (4480, 35966), (5138, 31360), (5488, 29360), (5872, 27440), (6272, 25690), (6860, 23488), (7340, 21952), (7840, 20552), (8960, 17983), (10276, 15680), (10976, 14680), (11744, 13720), (12544, 12845)]