201917140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^2$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 455195160

約数和(自身を除く): 253278020

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 97, 116, 145, 148, 185, 194, 290, 370, 388, 485, 580, 740, 970, 1073, 1940, 2146, 2813, 3589, 4292, 5365, 5626, 7178, 9409, 10730, 11252, 14065, 14356, 17945, 18818, 21460, 28130, 35890, 37636, 47045, 56260, 71780, 94090, 104081, 188180, 208162, 272861, 348133, 416324, 520405, 545722, 696266, 1040810, 1091444, 1364305, 1392532, 1740665, 2081620, 2728610, 3481330, 5457220, 6962660, 10095857, 20191714, 40383428, 50479285, 100958570, 201917140]

約数ペア:

[(1, 201917140), (2, 100958570), (4, 50479285), (5, 40383428), (10, 20191714), (20, 10095857), (29, 6962660), (37, 5457220), (58, 3481330), (74, 2728610), (97, 2081620), (116, 1740665), (145, 1392532), (148, 1364305), (185, 1091444), (194, 1040810), (290, 696266), (370, 545722), (388, 520405), (485, 416324), (580, 348133), (740, 272861), (970, 208162), (1073, 188180), (1940, 104081), (2146, 94090), (2813, 71780), (3589, 56260), (4292, 47045), (5365, 37636), (5626, 35890), (7178, 28130), (9409, 21460), (10730, 18818), (11252, 17945), (14065, 14356)]