78368120

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12479}}^1$

素因数の和:12647

約数の個数: 32

約数和(自身を含む): 177465600

約数和(自身を除く): 99097480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 12479, 24958, 49916, 62395, 99832, 124790, 249580, 499160, 1959203, 3918406, 7836812, 9796015, 15673624, 19592030, 39184060, 78368120]

約数ペア:

[(1, 78368120), (2, 39184060), (4, 19592030), (5, 15673624), (8, 9796015), (10, 7836812), (20, 3918406), (40, 1959203), (157, 499160), (314, 249580), (628, 124790), (785, 99832), (1256, 62395), (1570, 49916), (3140, 24958), (6280, 12479)]