19753420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2539}}^1$

素因数の和:2937

約数の個数: 24

約数和(自身を含む): 41605200

約数和(自身を除く): 21851780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 2539, 3890, 5078, 7780, 10156, 12695, 25390, 50780, 987671, 1975342, 3950684, 4938355, 9876710, 19753420]

約数ペア:

[(1, 19753420), (2, 9876710), (4, 4938355), (5, 3950684), (10, 1975342), (20, 987671), (389, 50780), (778, 25390), (1556, 12695), (1945, 10156), (2539, 7780), (3890, 5078)]