18574480

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2939}}^1$

素因数の和:3031

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 25172720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2939, 3160, 5878, 6320, 11756, 14695, 23512, 29390, 47024, 58780, 117560, 232181, 235120, 464362, 928724, 1160905, 1857448, 2321810, 3714896, 4643620, 9287240, 18574480]

約数ペア:

[(1, 18574480), (2, 9287240), (4, 4643620), (5, 3714896), (8, 2321810), (10, 1857448), (16, 1160905), (20, 928724), (40, 464362), (79, 235120), (80, 232181), (158, 117560), (316, 58780), (395, 47024), (632, 29390), (790, 23512), (1264, 14695), (1580, 11756), (2939, 6320), (3160, 5878)]