18997280

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3209}}^1$

素因数の和:3261

約数の個数: 48

約数和(自身を含む): 46108440

約数和(自身を除く): 27111160

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, 3209, 5920, 6418, 12836, 16045, 25672, 32090, 51344, 64180, 102688, 118733, 128360, 237466, 256720, 474932, 513440, 593665, 949864, 1187330, 1899728, 2374660, 3799456, 4749320, 9498640, 18997280]

約数ペア:

[(1, 18997280), (2, 9498640), (4, 4749320), (5, 3799456), (8, 2374660), (10, 1899728), (16, 1187330), (20, 949864), (32, 593665), (37, 513440), (40, 474932), (74, 256720), (80, 237466), (148, 128360), (160, 118733), (185, 102688), (296, 64180), (370, 51344), (592, 32090), (740, 25672), (1184, 16045), (1480, 12836), (2960, 6418), (3209, 5920)]