90864220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 195148800

約数和(自身を除く): 104284580

約数列:

[1, 2, 4, 5, 10, 20, 79, 131, 158, 262, 316, 395, 439, 524, 655, 790, 878, 1310, 1580, 1756, 2195, 2620, 4390, 8780, 10349, 20698, 34681, 41396, 51745, 57509, 69362, 103490, 115018, 138724, 173405, 206980, 230036, 287545, 346810, 575090, 693620, 1150180, 4543211, 9086422, 18172844, 22716055, 45432110, 90864220]

約数ペア:

[(1, 90864220), (2, 45432110), (4, 22716055), (5, 18172844), (10, 9086422), (20, 4543211), (79, 1150180), (131, 693620), (158, 575090), (262, 346810), (316, 287545), (395, 230036), (439, 206980), (524, 173405), (655, 138724), (790, 115018), (878, 103490), (1310, 69362), (1580, 57509), (1756, 51745), (2195, 41396), (2620, 34681), (4390, 20698), (8780, 10349)]