19983660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4691}}^1$

素因数の和:4774

約数の個数: 48

約数和(自身を含む): 56754432

約数和(自身を除く): 36770772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4691, 9382, 14073, 18764, 23455, 28146, 46910, 56292, 70365, 93820, 140730, 281460, 333061, 666122, 999183, 1332244, 1665305, 1998366, 3330610, 3996732, 4995915, 6661220, 9991830, 19983660]

約数ペア:

[(1, 19983660), (2, 9991830), (3, 6661220), (4, 4995915), (5, 3996732), (6, 3330610), (10, 1998366), (12, 1665305), (15, 1332244), (20, 999183), (30, 666122), (60, 333061), (71, 281460), (142, 140730), (213, 93820), (284, 70365), (355, 56292), (426, 46910), (710, 28146), (852, 23455), (1065, 18764), (1420, 14073), (2130, 9382), (4260, 4691)]