78867280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12479}}^1$

素因数の和:12571

約数の個数: 40

約数和(自身を含む): 185702400

約数和(自身を除く): 106835120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 12479, 24958, 49916, 62395, 99832, 124790, 199664, 249580, 499160, 985841, 998320, 1971682, 3943364, 4929205, 7886728, 9858410, 15773456, 19716820, 39433640, 78867280]

約数ペア:

[(1, 78867280), (2, 39433640), (4, 19716820), (5, 15773456), (8, 9858410), (10, 7886728), (16, 4929205), (20, 3943364), (40, 1971682), (79, 998320), (80, 985841), (158, 499160), (316, 249580), (395, 199664), (632, 124790), (790, 99832), (1264, 62395), (1580, 49916), (3160, 24958), (6320, 12479)]