81154760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1710

約数の個数: 64

約数和(自身を含む): 193406400

約数和(自身を除く): 112251640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 290, 344, 430, 580, 860, 1160, 1247, 1627, 1720, 2494, 3254, 4988, 6235, 6508, 8135, 9976, 12470, 13016, 16270, 24940, 32540, 47183, 49880, 65080, 69961, 94366, 139922, 188732, 235915, 279844, 349805, 377464, 471830, 559688, 699610, 943660, 1399220, 1887320, 2028869, 2798440, 4057738, 8115476, 10144345, 16230952, 20288690, 40577380, 81154760]

約数ペア:

[(1, 81154760), (2, 40577380), (4, 20288690), (5, 16230952), (8, 10144345), (10, 8115476), (20, 4057738), (29, 2798440), (40, 2028869), (43, 1887320), (58, 1399220), (86, 943660), (116, 699610), (145, 559688), (172, 471830), (215, 377464), (232, 349805), (290, 279844), (344, 235915), (430, 188732), (580, 139922), (860, 94366), (1160, 69961), (1247, 65080), (1627, 49880), (1720, 47183), (2494, 32540), (3254, 24940), (4988, 16270), (6235, 13016), (6508, 12470), (8135, 9976)]