4089040

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:739

約数の個数: 40

約数和(自身を含む): 9642240

約数和(自身を除く): 5553200

約数列:

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

約数ペア:

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