205537680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{285469}}^1$

素因数の和:285488

約数の個数: 60

約数和(自身を含む): 690266460

約数和(自身を除く): 484728780

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 285469, 570938, 856407, 1141876, 1427345, 1712814, 2283752, 2569221, 2854690, 3425628, 4282035, 4567504, 5138442, 5709380, 6851256, 8564070, 10276884, 11418760, 12846105, 13702512, 17128140, 20553768, 22837520, 25692210, 34256280, 41107536, 51384420, 68512560, 102768840, 205537680]

約数ペア:

[(1, 205537680), (2, 102768840), (3, 68512560), (4, 51384420), (5, 41107536), (6, 34256280), (8, 25692210), (9, 22837520), (10, 20553768), (12, 17128140), (15, 13702512), (16, 12846105), (18, 11418760), (20, 10276884), (24, 8564070), (30, 6851256), (36, 5709380), (40, 5138442), (45, 4567504), (48, 4282035), (60, 3425628), (72, 2854690), (80, 2569221), (90, 2283752), (120, 1712814), (144, 1427345), (180, 1141876), (240, 856407), (360, 570938), (720, 285469)]