20132419420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1\times {\mathrm{15259}}^1$

素因数の和:16918

約数の個数: 48

約数和(自身を含む): 43339010400

約数和(自身を除く): 23206590980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1609, 3218, 6436, 8045, 15259, 16090, 30518, 32180, 61036, 65969, 76295, 131938, 152590, 263876, 305180, 329845, 625619, 659690, 1251238, 1319380, 2502476, 3128095, 6256190, 12512380, 24551731, 49103462, 98206924, 122758655, 245517310, 491034620, 1006620971, 2013241942, 4026483884, 5033104855, 10066209710, 20132419420]

約数ペア:

[(1, 20132419420), (2, 10066209710), (4, 5033104855), (5, 4026483884), (10, 2013241942), (20, 1006620971), (41, 491034620), (82, 245517310), (164, 122758655), (205, 98206924), (410, 49103462), (820, 24551731), (1609, 12512380), (3218, 6256190), (6436, 3128095), (8045, 2502476), (15259, 1319380), (16090, 1251238), (30518, 659690), (32180, 625619), (61036, 329845), (65969, 305180), (76295, 263876), (131938, 152590)]