198402520

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{8039}}^1$

素因数の和:8667

約数の個数: 32

約数和(自身を含む): 447184800

約数和(自身を除く): 248782280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 6170, 8039, 12340, 16078, 24680, 32156, 40195, 64312, 80390, 160780, 321560, 4960063, 9920126, 19840252, 24800315, 39680504, 49600630, 99201260, 198402520]

約数ペア:

[(1, 198402520), (2, 99201260), (4, 49600630), (5, 39680504), (8, 24800315), (10, 19840252), (20, 9920126), (40, 4960063), (617, 321560), (1234, 160780), (2468, 80390), (3085, 64312), (4936, 40195), (6170, 32156), (8039, 24680), (12340, 16078)]