390171520

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{7717}}^1$

素因数の和:7815

約数の個数: 64

約数和(自身を含む): 944683200

約数和(自身を除く): 554511680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1264, 1580, 2528, 3160, 5056, 6320, 7717, 10112, 12640, 15434, 25280, 30868, 38585, 50560, 61736, 77170, 123472, 154340, 246944, 308680, 493888, 609643, 617360, 987776, 1219286, 1234720, 2438572, 2469440, 3048215, 4877144, 4938880, 6096430, 9754288, 12192860, 19508576, 24385720, 39017152, 48771440, 78034304, 97542880, 195085760, 390171520]

約数ペア:

[(1, 390171520), (2, 195085760), (4, 97542880), (5, 78034304), (8, 48771440), (10, 39017152), (16, 24385720), (20, 19508576), (32, 12192860), (40, 9754288), (64, 6096430), (79, 4938880), (80, 4877144), (128, 3048215), (158, 2469440), (160, 2438572), (316, 1234720), (320, 1219286), (395, 987776), (632, 617360), (640, 609643), (790, 493888), (1264, 308680), (1580, 246944), (2528, 154340), (3160, 123472), (5056, 77170), (6320, 61736), (7717, 50560), (10112, 38585), (12640, 30868), (15434, 25280)]