20371590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{491}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 53189136

約数和(自身を除く): 32817546

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 461, 491, 922, 982, 1383, 1473, 2305, 2455, 2766, 2946, 4149, 4419, 4610, 4910, 6915, 7365, 8298, 8838, 13830, 14730, 20745, 22095, 41490, 44190, 226351, 452702, 679053, 1131755, 1358106, 2037159, 2263510, 3395265, 4074318, 6790530, 10185795, 20371590]

約数ペア:

[(1, 20371590), (2, 10185795), (3, 6790530), (5, 4074318), (6, 3395265), (9, 2263510), (10, 2037159), (15, 1358106), (18, 1131755), (30, 679053), (45, 452702), (90, 226351), (461, 44190), (491, 41490), (922, 22095), (982, 20745), (1383, 14730), (1473, 13830), (2305, 8838), (2455, 8298), (2766, 7365), (2946, 6915), (4149, 4910), (4419, 4610)]