280633480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{977}}^1$

素因数の和:1198

約数の個数: 64

約数和(自身を含む): 650643840

約数和(自身を除く): 370010360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 167, 172, 215, 334, 344, 430, 668, 835, 860, 977, 1336, 1670, 1720, 1954, 3340, 3908, 4885, 6680, 7181, 7816, 9770, 14362, 19540, 28724, 35905, 39080, 42011, 57448, 71810, 84022, 143620, 163159, 168044, 210055, 287240, 326318, 336088, 420110, 652636, 815795, 840220, 1305272, 1631590, 1680440, 3263180, 6526360, 7015837, 14031674, 28063348, 35079185, 56126696, 70158370, 140316740, 280633480]

約数ペア:

[(1, 280633480), (2, 140316740), (4, 70158370), (5, 56126696), (8, 35079185), (10, 28063348), (20, 14031674), (40, 7015837), (43, 6526360), (86, 3263180), (167, 1680440), (172, 1631590), (215, 1305272), (334, 840220), (344, 815795), (430, 652636), (668, 420110), (835, 336088), (860, 326318), (977, 287240), (1336, 210055), (1670, 168044), (1720, 163159), (1954, 143620), (3340, 84022), (3908, 71810), (4885, 57448), (6680, 42011), (7181, 39080), (7816, 35905), (9770, 28724), (14362, 19540)]