64965220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{1109}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 142657200

約数和(自身を除く): 77691980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 101, 116, 145, 202, 290, 404, 505, 580, 1010, 1109, 2020, 2218, 2929, 4436, 5545, 5858, 11090, 11716, 14645, 22180, 29290, 32161, 58580, 64322, 112009, 128644, 160805, 224018, 321610, 448036, 560045, 643220, 1120090, 2240180, 3248261, 6496522, 12993044, 16241305, 32482610, 64965220]

約数ペア:

[(1, 64965220), (2, 32482610), (4, 16241305), (5, 12993044), (10, 6496522), (20, 3248261), (29, 2240180), (58, 1120090), (101, 643220), (116, 560045), (145, 448036), (202, 321610), (290, 224018), (404, 160805), (505, 128644), (580, 112009), (1010, 64322), (1109, 58580), (2020, 32161), (2218, 29290), (2929, 22180), (4436, 14645), (5545, 11716), (5858, 11090)]