1640762518

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1\times {\mathrm{2069}}^1$

素因数の和:2640

約数の個数: 32

約数和(自身を含む): 2660364000

約数和(自身を除く): 1019601482

約数列:

[1, 2, 19, 38, 41, 82, 509, 779, 1018, 1558, 2069, 4138, 9671, 19342, 20869, 39311, 41738, 78622, 84829, 169658, 396511, 793022, 1053121, 1611751, 2106242, 3223502, 20009299, 40018598, 43177961, 86355922, 820381259, 1640762518]

約数ペア:

[(1, 1640762518), (2, 820381259), (19, 86355922), (38, 43177961), (41, 40018598), (82, 20009299), (509, 3223502), (779, 2106242), (1018, 1611751), (1558, 1053121), (2069, 793022), (4138, 396511), (9671, 169658), (19342, 84829), (20869, 78622), (39311, 41738)]