20391350

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:103

約数の個数: 96

約数和(自身を含む): 46872000

約数和(自身を除く): 26480650

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 41, 49, 50, 58, 70, 82, 98, 145, 175, 203, 205, 245, 287, 290, 343, 350, 406, 410, 490, 574, 686, 725, 1015, 1025, 1189, 1225, 1421, 1435, 1450, 1715, 2009, 2030, 2050, 2378, 2450, 2842, 2870, 3430, 4018, 5075, 5945, 7105, 7175, 8323, 8575, 9947, 10045, 10150, 11890, 14063, 14210, 14350, 16646, 17150, 19894, 20090, 28126, 29725, 35525, 41615, 49735, 50225, 58261, 59450, 70315, 71050, 83230, 99470, 100450, 116522, 140630, 208075, 248675, 291305, 351575, 407827, 416150, 497350, 582610, 703150, 815654, 1456525, 2039135, 2913050, 4078270, 10195675, 20391350]

約数ペア:

[(1, 20391350), (2, 10195675), (5, 4078270), (7, 2913050), (10, 2039135), (14, 1456525), (25, 815654), (29, 703150), (35, 582610), (41, 497350), (49, 416150), (50, 407827), (58, 351575), (70, 291305), (82, 248675), (98, 208075), (145, 140630), (175, 116522), (203, 100450), (205, 99470), (245, 83230), (287, 71050), (290, 70315), (343, 59450), (350, 58261), (406, 50225), (410, 49735), (490, 41615), (574, 35525), (686, 29725), (725, 28126), (1015, 20090), (1025, 19894), (1189, 17150), (1225, 16646), (1421, 14350), (1435, 14210), (1450, 14063), (1715, 11890), (2009, 10150), (2030, 10045), (2050, 9947), (2378, 8575), (2450, 8323), (2842, 7175), (2870, 7105), (3430, 5945), (4018, 5075)]