66789760

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1$

素因数の和:1419

約数の個数: 64

約数和(自身を含む): 161812800

約数和(自身を除く): 95023040

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, 1321, 1580, 2528, 2642, 3160, 5056, 5284, 6320, 6605, 10112, 10568, 12640, 13210, 21136, 25280, 26420, 42272, 50560, 52840, 84544, 104359, 105680, 169088, 208718, 211360, 417436, 422720, 521795, 834872, 845440, 1043590, 1669744, 2087180, 3339488, 4174360, 6678976, 8348720, 13357952, 16697440, 33394880, 66789760]

約数ペア:

[(1, 66789760), (2, 33394880), (4, 16697440), (5, 13357952), (8, 8348720), (10, 6678976), (16, 4174360), (20, 3339488), (32, 2087180), (40, 1669744), (64, 1043590), (79, 845440), (80, 834872), (128, 521795), (158, 422720), (160, 417436), (316, 211360), (320, 208718), (395, 169088), (632, 105680), (640, 104359), (790, 84544), (1264, 52840), (1321, 50560), (1580, 42272), (2528, 26420), (2642, 25280), (3160, 21136), (5056, 13210), (5284, 12640), (6320, 10568), (6605, 10112)]