28146640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^2\times {\mathrm{257}}^1$

素因数の和:344

約数の個数: 60

約数和(自身を含む): 67519116

約数和(自身を除く): 39372476

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 257, 296, 370, 514, 592, 740, 1028, 1285, 1369, 1480, 2056, 2570, 2738, 2960, 4112, 5140, 5476, 6845, 9509, 10280, 10952, 13690, 19018, 20560, 21904, 27380, 38036, 47545, 54760, 76072, 95090, 109520, 152144, 190180, 351833, 380360, 703666, 760720, 1407332, 1759165, 2814664, 3518330, 5629328, 7036660, 14073320, 28146640]

約数ペア:

[(1, 28146640), (2, 14073320), (4, 7036660), (5, 5629328), (8, 3518330), (10, 2814664), (16, 1759165), (20, 1407332), (37, 760720), (40, 703666), (74, 380360), (80, 351833), (148, 190180), (185, 152144), (257, 109520), (296, 95090), (370, 76072), (514, 54760), (592, 47545), (740, 38036), (1028, 27380), (1285, 21904), (1369, 20560), (1480, 19018), (2056, 13690), (2570, 10952), (2738, 10280), (2960, 9509), (4112, 6845), (5140, 5476)]