25594420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 55319040

約数和(自身を除く): 29724620

約数列:

[1, 2, 4, 5, 10, 20, 79, 97, 158, 167, 194, 316, 334, 388, 395, 485, 668, 790, 835, 970, 1580, 1670, 1940, 3340, 7663, 13193, 15326, 16199, 26386, 30652, 32398, 38315, 52772, 64796, 65965, 76630, 80995, 131930, 153260, 161990, 263860, 323980, 1279721, 2559442, 5118884, 6398605, 12797210, 25594420]

約数ペア:

[(1, 25594420), (2, 12797210), (4, 6398605), (5, 5118884), (10, 2559442), (20, 1279721), (79, 323980), (97, 263860), (158, 161990), (167, 153260), (194, 131930), (316, 80995), (334, 76630), (388, 65965), (395, 64796), (485, 52772), (668, 38315), (790, 32398), (835, 30652), (970, 26386), (1580, 16199), (1670, 15326), (1940, 13193), (3340, 7663)]