71572420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{467}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 154103040

約数和(自身を除く): 82530620

約数列:

[1, 2, 4, 5, 10, 20, 79, 97, 158, 194, 316, 388, 395, 467, 485, 790, 934, 970, 1580, 1868, 1940, 2335, 4670, 7663, 9340, 15326, 30652, 36893, 38315, 45299, 73786, 76630, 90598, 147572, 153260, 181196, 184465, 226495, 368930, 452990, 737860, 905980, 3578621, 7157242, 14314484, 17893105, 35786210, 71572420]

約数ペア:

[(1, 71572420), (2, 35786210), (4, 17893105), (5, 14314484), (10, 7157242), (20, 3578621), (79, 905980), (97, 737860), (158, 452990), (194, 368930), (316, 226495), (388, 184465), (395, 181196), (467, 153260), (485, 147572), (790, 90598), (934, 76630), (970, 73786), (1580, 45299), (1868, 38315), (1940, 36893), (2335, 30652), (4670, 15326), (7663, 9340)]