289267520

素因数分解:

$2^6\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2731}}^1$

素因数の和:3079

約数の個数: 56

約数和(自身を含む): 691152288

約数和(自身を除く): 401884768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 331, 662, 1324, 1655, 2648, 2731, 3310, 5296, 5462, 6620, 10592, 10924, 13240, 13655, 21184, 21848, 26480, 27310, 43696, 52960, 54620, 87392, 105920, 109240, 174784, 218480, 436960, 873920, 903961, 1807922, 3615844, 4519805, 7231688, 9039610, 14463376, 18079220, 28926752, 36158440, 57853504, 72316880, 144633760, 289267520]

約数ペア:

[(1, 289267520), (2, 144633760), (4, 72316880), (5, 57853504), (8, 36158440), (10, 28926752), (16, 18079220), (20, 14463376), (32, 9039610), (40, 7231688), (64, 4519805), (80, 3615844), (160, 1807922), (320, 903961), (331, 873920), (662, 436960), (1324, 218480), (1655, 174784), (2648, 109240), (2731, 105920), (3310, 87392), (5296, 54620), (5462, 52960), (6620, 43696), (10592, 27310), (10924, 26480), (13240, 21848), (13655, 21184)]