80874220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3877}}^1$

素因数の和:4042

約数の個数: 48

約数和(自身を含む): 195451200

約数和(自身を除く): 114576980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 3877, 4172, 5215, 7754, 10430, 15508, 19385, 20860, 27139, 38770, 54278, 77540, 108556, 135695, 271390, 542780, 577673, 1155346, 2310692, 2888365, 4043711, 5776730, 8087422, 11553460, 16174844, 20218555, 40437110, 80874220]

約数ペア:

[(1, 80874220), (2, 40437110), (4, 20218555), (5, 16174844), (7, 11553460), (10, 8087422), (14, 5776730), (20, 4043711), (28, 2888365), (35, 2310692), (70, 1155346), (140, 577673), (149, 542780), (298, 271390), (596, 135695), (745, 108556), (1043, 77540), (1490, 54278), (2086, 38770), (2980, 27139), (3877, 20860), (4172, 19385), (5215, 15508), (7754, 10430)]