20266777040

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{549533}}^1$

素因数の和:550007

約数の個数: 40

約数和(自身を含む): 47222555688

約数和(自身を除く): 26955778648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1844, 2305, 3688, 4610, 7376, 9220, 18440, 36880, 549533, 1099066, 2198132, 2747665, 4396264, 5495330, 8792528, 10990660, 21981320, 43962640, 253334713, 506669426, 1013338852, 1266673565, 2026677704, 2533347130, 4053355408, 5066694260, 10133388520, 20266777040]

約数ペア:

[(1, 20266777040), (2, 10133388520), (4, 5066694260), (5, 4053355408), (8, 2533347130), (10, 2026677704), (16, 1266673565), (20, 1013338852), (40, 506669426), (80, 253334713), (461, 43962640), (922, 21981320), (1844, 10990660), (2305, 8792528), (3688, 5495330), (4610, 4396264), (7376, 2747665), (9220, 2198132), (18440, 1099066), (36880, 549533)]