397421876

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1\times {\mathrm{347}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 743662080

約数和(自身を除く): 346240204

約数列:

[1, 2, 4, 23, 46, 59, 92, 118, 211, 236, 347, 422, 694, 844, 1357, 1388, 2714, 4853, 5428, 7981, 9706, 12449, 15962, 19412, 20473, 24898, 31924, 40946, 49796, 73217, 81892, 146434, 286327, 292868, 470879, 572654, 941758, 1145308, 1683991, 1883516, 3367982, 4319803, 6735964, 8639606, 17279212, 99355469, 198710938, 397421876]

約数ペア:

[(1, 397421876), (2, 198710938), (4, 99355469), (23, 17279212), (46, 8639606), (59, 6735964), (92, 4319803), (118, 3367982), (211, 1883516), (236, 1683991), (347, 1145308), (422, 941758), (694, 572654), (844, 470879), (1357, 292868), (1388, 286327), (2714, 146434), (4853, 81892), (5428, 73217), (7981, 49796), (9706, 40946), (12449, 31924), (15962, 24898), (19412, 20473)]