91139260

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 195592320

約数和(自身を除く): 104453060

約数列:

[1, 2, 4, 5, 10, 20, 97, 109, 194, 218, 388, 431, 436, 485, 545, 862, 970, 1090, 1724, 1940, 2155, 2180, 4310, 8620, 10573, 21146, 41807, 42292, 46979, 52865, 83614, 93958, 105730, 167228, 187916, 209035, 211460, 234895, 418070, 469790, 836140, 939580, 4556963, 9113926, 18227852, 22784815, 45569630, 91139260]

約数ペア:

[(1, 91139260), (2, 45569630), (4, 22784815), (5, 18227852), (10, 9113926), (20, 4556963), (97, 939580), (109, 836140), (194, 469790), (218, 418070), (388, 234895), (431, 211460), (436, 209035), (485, 187916), (545, 167228), (862, 105730), (970, 93958), (1090, 83614), (1724, 52865), (1940, 46979), (2155, 42292), (2180, 41807), (4310, 21146), (8620, 10573)]