5131880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 12700800

約数和(自身を除く): 7568920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 139, 142, 260, 278, 284, 355, 520, 556, 568, 695, 710, 923, 1112, 1390, 1420, 1807, 1846, 2780, 2840, 3614, 3692, 4615, 5560, 7228, 7384, 9035, 9230, 9869, 14456, 18070, 18460, 19738, 36140, 36920, 39476, 49345, 72280, 78952, 98690, 128297, 197380, 256594, 394760, 513188, 641485, 1026376, 1282970, 2565940, 5131880]

約数ペア:

[(1, 5131880), (2, 2565940), (4, 1282970), (5, 1026376), (8, 641485), (10, 513188), (13, 394760), (20, 256594), (26, 197380), (40, 128297), (52, 98690), (65, 78952), (71, 72280), (104, 49345), (130, 39476), (139, 36920), (142, 36140), (260, 19738), (278, 18460), (284, 18070), (355, 14456), (520, 9869), (556, 9230), (568, 9035), (695, 7384), (710, 7228), (923, 5560), (1112, 4615), (1390, 3692), (1420, 3614), (1807, 2840), (1846, 2780)]