12839800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1493}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 30567240

約数和(自身を除く): 17727440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1493, 1720, 2150, 2986, 4300, 5972, 7465, 8600, 11944, 14930, 29860, 37325, 59720, 64199, 74650, 128398, 149300, 256796, 298600, 320995, 513592, 641990, 1283980, 1604975, 2567960, 3209950, 6419900, 12839800]

約数ペア:

[(1, 12839800), (2, 6419900), (4, 3209950), (5, 2567960), (8, 1604975), (10, 1283980), (20, 641990), (25, 513592), (40, 320995), (43, 298600), (50, 256796), (86, 149300), (100, 128398), (172, 74650), (200, 64199), (215, 59720), (344, 37325), (430, 29860), (860, 14930), (1075, 11944), (1493, 8600), (1720, 7465), (2150, 5972), (2986, 4300)]