54810820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1487}}^1$

素因数の和:1612

約数の個数: 48

約数和(自身を含む): 122492160

約数和(自身を除く): 67681340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1487, 1843, 1940, 2974, 3686, 5948, 7372, 7435, 9215, 14870, 18430, 28253, 29740, 36860, 56506, 113012, 141265, 144239, 282530, 288478, 565060, 576956, 721195, 1442390, 2740541, 2884780, 5481082, 10962164, 13702705, 27405410, 54810820]

約数ペア:

[(1, 54810820), (2, 27405410), (4, 13702705), (5, 10962164), (10, 5481082), (19, 2884780), (20, 2740541), (38, 1442390), (76, 721195), (95, 576956), (97, 565060), (190, 288478), (194, 282530), (380, 144239), (388, 141265), (485, 113012), (970, 56506), (1487, 36860), (1843, 29740), (1940, 28253), (2974, 18430), (3686, 14870), (5948, 9215), (7372, 7435)]