217256440

素因数分解:

$2^3\times 5^1\times {\mathrm{1327}}^1\times {\mathrm{4093}}^1$

素因数の和:5431

約数の個数: 32

約数和(自身を含む): 489314880

約数和(自身を除く): 272058440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1327, 2654, 4093, 5308, 6635, 8186, 10616, 13270, 16372, 20465, 26540, 32744, 40930, 53080, 81860, 163720, 5431411, 10862822, 21725644, 27157055, 43451288, 54314110, 108628220, 217256440]

約数ペア:

[(1, 217256440), (2, 108628220), (4, 54314110), (5, 43451288), (8, 27157055), (10, 21725644), (20, 10862822), (40, 5431411), (1327, 163720), (2654, 81860), (4093, 53080), (5308, 40930), (6635, 32744), (8186, 26540), (10616, 20465), (13270, 16372)]