221232580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{1987}}^1$

素因数の和:2308

約数の個数: 48

約数和(自身を含む): 490956480

約数和(自身を除く): 269723900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 293, 380, 586, 1172, 1465, 1987, 2930, 3974, 5567, 5860, 7948, 9935, 11134, 19870, 22268, 27835, 37753, 39740, 55670, 75506, 111340, 151012, 188765, 377530, 582191, 755060, 1164382, 2328764, 2910955, 5821910, 11061629, 11643820, 22123258, 44246516, 55308145, 110616290, 221232580]

約数ペア:

[(1, 221232580), (2, 110616290), (4, 55308145), (5, 44246516), (10, 22123258), (19, 11643820), (20, 11061629), (38, 5821910), (76, 2910955), (95, 2328764), (190, 1164382), (293, 755060), (380, 582191), (586, 377530), (1172, 188765), (1465, 151012), (1987, 111340), (2930, 75506), (3974, 55670), (5567, 39740), (5860, 37753), (7948, 27835), (9935, 22268), (11134, 19870)]