19865500

素因数分解:

$2^2\times 5^3\times {\mathrm{67}}^1\times {\mathrm{593}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 44108064

約数和(自身を除く): 24242564

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 125, 134, 250, 268, 335, 500, 593, 670, 1186, 1340, 1675, 2372, 2965, 3350, 5930, 6700, 8375, 11860, 14825, 16750, 29650, 33500, 39731, 59300, 74125, 79462, 148250, 158924, 198655, 296500, 397310, 794620, 993275, 1986550, 3973100, 4966375, 9932750, 19865500]

約数ペア:

[(1, 19865500), (2, 9932750), (4, 4966375), (5, 3973100), (10, 1986550), (20, 993275), (25, 794620), (50, 397310), (67, 296500), (100, 198655), (125, 158924), (134, 148250), (250, 79462), (268, 74125), (335, 59300), (500, 39731), (593, 33500), (670, 29650), (1186, 16750), (1340, 14825), (1675, 11860), (2372, 8375), (2965, 6700), (3350, 5930)]