8178080

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:741

約数の個数: 48

約数和(自身を含む): 19595520

約数和(自身を除く): 11417440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 647, 790, 1264, 1294, 1580, 2528, 2588, 3160, 3235, 5176, 6320, 6470, 10352, 12640, 12940, 20704, 25880, 51113, 51760, 102226, 103520, 204452, 255565, 408904, 511130, 817808, 1022260, 1635616, 2044520, 4089040, 8178080]

約数ペア:

[(1, 8178080), (2, 4089040), (4, 2044520), (5, 1635616), (8, 1022260), (10, 817808), (16, 511130), (20, 408904), (32, 255565), (40, 204452), (79, 103520), (80, 102226), (158, 51760), (160, 51113), (316, 25880), (395, 20704), (632, 12940), (647, 12640), (790, 10352), (1264, 6470), (1294, 6320), (1580, 5176), (2528, 3235), (2588, 3160)]