78487890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{201251}}^1$

素因数の和:201274

約数の個数: 32

約数和(自身を含む): 202862016

約数和(自身を除く): 124374126

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 201251, 402502, 603753, 1006255, 1207506, 2012510, 2616263, 3018765, 5232526, 6037530, 7848789, 13081315, 15697578, 26162630, 39243945, 78487890]

約数ペア:

[(1, 78487890), (2, 39243945), (3, 26162630), (5, 15697578), (6, 13081315), (10, 7848789), (13, 6037530), (15, 5232526), (26, 3018765), (30, 2616263), (39, 2012510), (65, 1207506), (78, 1006255), (130, 603753), (195, 402502), (390, 201251)]