17883940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2477}}^1$

素因数の和:2524

約数の個数: 36

約数和(自身を含む): 39652956

約数和(自身を除く): 21769016

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2477, 3610, 4954, 7220, 9908, 12385, 24770, 47063, 49540, 94126, 188252, 235315, 470630, 894197, 941260, 1788394, 3576788, 4470985, 8941970, 17883940]

約数ペア:

[(1, 17883940), (2, 8941970), (4, 4470985), (5, 3576788), (10, 1788394), (19, 941260), (20, 894197), (38, 470630), (76, 235315), (95, 188252), (190, 94126), (361, 49540), (380, 47063), (722, 24770), (1444, 12385), (1805, 9908), (2477, 7220), (3610, 4954)]