172637420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23911}}^1$

素因数の和:23958

約数の個数: 36

約数和(自身を含む): 382639824

約数和(自身を除く): 210002404

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 23911, 47822, 95644, 119555, 239110, 454309, 478220, 908618, 1817236, 2271545, 4543090, 8631871, 9086180, 17263742, 34527484, 43159355, 86318710, 172637420]

約数ペア:

[(1, 172637420), (2, 86318710), (4, 43159355), (5, 34527484), (10, 17263742), (19, 9086180), (20, 8631871), (38, 4543090), (76, 2271545), (95, 1817236), (190, 908618), (361, 478220), (380, 454309), (722, 239110), (1444, 119555), (1805, 95644), (3610, 47822), (7220, 23911)]