381710680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5281}}^1$

素因数の和:5444

約数の個数: 64

約数和(自身を含む): 931744800

約数和(自身を除く): 550034120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 1112, 1390, 1807, 2780, 3614, 5281, 5560, 7228, 9035, 10562, 14456, 18070, 21124, 26405, 36140, 42248, 52810, 68653, 72280, 105620, 137306, 211240, 274612, 343265, 549224, 686530, 734059, 1373060, 1468118, 2746120, 2936236, 3670295, 5872472, 7340590, 9542767, 14681180, 19085534, 29362360, 38171068, 47713835, 76342136, 95427670, 190855340, 381710680]

約数ペア:

[(1, 381710680), (2, 190855340), (4, 95427670), (5, 76342136), (8, 47713835), (10, 38171068), (13, 29362360), (20, 19085534), (26, 14681180), (40, 9542767), (52, 7340590), (65, 5872472), (104, 3670295), (130, 2936236), (139, 2746120), (260, 1468118), (278, 1373060), (520, 734059), (556, 686530), (695, 549224), (1112, 343265), (1390, 274612), (1807, 211240), (2780, 137306), (3614, 105620), (5281, 72280), (5560, 68653), (7228, 52810), (9035, 42248), (10562, 36140), (14456, 26405), (18070, 21124)]