145540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 322560

約数和(自身を除く): 177020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 383, 766, 1532, 1915, 3830, 7277, 7660, 14554, 29108, 36385, 72770, 145540]

約数ペア:

[(1, 145540), (2, 72770), (4, 36385), (5, 29108), (10, 14554), (19, 7660), (20, 7277), (38, 3830), (76, 1915), (95, 1532), (190, 766), (380, 383)]