80802780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17047}}^1$

素因数の和:17138

約数の個数: 48

約数和(自身を含む): 229125120

約数和(自身を除く): 148322340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4740, 17047, 34094, 51141, 68188, 85235, 102282, 170470, 204564, 255705, 340940, 511410, 1022820, 1346713, 2693426, 4040139, 5386852, 6733565, 8080278, 13467130, 16160556, 20200695, 26934260, 40401390, 80802780]

約数ペア:

[(1, 80802780), (2, 40401390), (3, 26934260), (4, 20200695), (5, 16160556), (6, 13467130), (10, 8080278), (12, 6733565), (15, 5386852), (20, 4040139), (30, 2693426), (60, 1346713), (79, 1022820), (158, 511410), (237, 340940), (316, 255705), (395, 204564), (474, 170470), (790, 102282), (948, 85235), (1185, 68188), (1580, 51141), (2370, 34094), (4740, 17047)]