19885280

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3359}}^1$

素因数の和:3411

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 28377760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3359, 5920, 6718, 13436, 16795, 26872, 33590, 53744, 67180, 107488, 124283, 134360, 248566, 268720, 497132, 537440, 621415, 994264, 1242830, 1988528, 2485660, 3977056, 4971320, 9942640, 19885280]

約数ペア:

[(1, 19885280), (2, 9942640), (4, 4971320), (5, 3977056), (8, 2485660), (10, 1988528), (16, 1242830), (20, 994264), (32, 621415), (37, 537440), (40, 497132), (74, 268720), (80, 248566), (148, 134360), (160, 124283), (185, 107488), (296, 67180), (370, 53744), (592, 33590), (740, 26872), (1184, 16795), (1480, 13436), (2960, 6718), (3359, 5920)]