78943540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1439}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 179504640

約数和(自身を除く): 100561100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 211, 260, 422, 844, 1055, 1439, 2110, 2743, 2878, 4220, 5486, 5756, 7195, 10972, 13715, 14390, 18707, 27430, 28780, 37414, 54860, 74828, 93535, 187070, 303629, 374140, 607258, 1214516, 1518145, 3036290, 3947177, 6072580, 7894354, 15788708, 19735885, 39471770, 78943540]

約数ペア:

[(1, 78943540), (2, 39471770), (4, 19735885), (5, 15788708), (10, 7894354), (13, 6072580), (20, 3947177), (26, 3036290), (52, 1518145), (65, 1214516), (130, 607258), (211, 374140), (260, 303629), (422, 187070), (844, 93535), (1055, 74828), (1439, 54860), (2110, 37414), (2743, 28780), (2878, 27430), (4220, 18707), (5486, 14390), (5756, 13715), (7195, 10972)]