20160419860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{212081}}^1$

素因数の和:212201

約数の個数: 72

約数和(自身を含む): 49756982184

約数和(自身を除く): 29596562324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 140, 194, 196, 245, 388, 485, 490, 679, 970, 980, 1358, 1940, 2716, 3395, 4753, 6790, 9506, 13580, 19012, 23765, 47530, 95060, 212081, 424162, 848324, 1060405, 1484567, 2120810, 2969134, 4241620, 5938268, 7422835, 10391969, 14845670, 20571857, 20783938, 29691340, 41143714, 41567876, 51959845, 82287428, 102859285, 103919690, 144002999, 205718570, 207839380, 288005998, 411437140, 576011996, 720014995, 1008020993, 1440029990, 2016041986, 2880059980, 4032083972, 5040104965, 10080209930, 20160419860]

約数ペア:

[(1, 20160419860), (2, 10080209930), (4, 5040104965), (5, 4032083972), (7, 2880059980), (10, 2016041986), (14, 1440029990), (20, 1008020993), (28, 720014995), (35, 576011996), (49, 411437140), (70, 288005998), (97, 207839380), (98, 205718570), (140, 144002999), (194, 103919690), (196, 102859285), (245, 82287428), (388, 51959845), (485, 41567876), (490, 41143714), (679, 29691340), (970, 20783938), (980, 20571857), (1358, 14845670), (1940, 10391969), (2716, 7422835), (3395, 5938268), (4753, 4241620), (6790, 2969134), (9506, 2120810), (13580, 1484567), (19012, 1060405), (23765, 848324), (47530, 424162), (95060, 212081)]