78641990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{2437}}^1$

素因数の和:2912

約数の個数: 32

約数和(自身を含む): 162195264

約数和(自身を除く): 83553274

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 461, 922, 2305, 2437, 3227, 4610, 4874, 6454, 12185, 16135, 17059, 24370, 32270, 34118, 85295, 170590, 1123457, 2246914, 5617285, 7864199, 11234570, 15728398, 39320995, 78641990]

約数ペア:

[(1, 78641990), (2, 39320995), (5, 15728398), (7, 11234570), (10, 7864199), (14, 5617285), (35, 2246914), (70, 1123457), (461, 170590), (922, 85295), (2305, 34118), (2437, 32270), (3227, 24370), (4610, 17059), (4874, 16135), (6454, 12185)]