19068020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{139}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 42571200

約数和(自身を除く): 23503180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 361, 380, 556, 695, 722, 1390, 1444, 1805, 2641, 2780, 3610, 5282, 6859, 7220, 10564, 13205, 13718, 26410, 27436, 34295, 50179, 52820, 68590, 100358, 137180, 200716, 250895, 501790, 953401, 1003580, 1906802, 3813604, 4767005, 9534010, 19068020]

約数ペア:

[(1, 19068020), (2, 9534010), (4, 4767005), (5, 3813604), (10, 1906802), (19, 1003580), (20, 953401), (38, 501790), (76, 250895), (95, 200716), (139, 137180), (190, 100358), (278, 68590), (361, 52820), (380, 50179), (556, 34295), (695, 27436), (722, 26410), (1390, 13718), (1444, 13205), (1805, 10564), (2641, 7220), (2780, 6859), (3610, 5282)]