128527240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103651}}^1$

素因数の和:103693

約数の個数: 32

約数和(自身を含む): 298517760

約数和(自身を除く): 169990520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 103651, 207302, 414604, 518255, 829208, 1036510, 2073020, 3213181, 4146040, 6426362, 12852724, 16065905, 25705448, 32131810, 64263620, 128527240]

約数ペア:

[(1, 128527240), (2, 64263620), (4, 32131810), (5, 25705448), (8, 16065905), (10, 12852724), (20, 6426362), (31, 4146040), (40, 3213181), (62, 2073020), (124, 1036510), (155, 829208), (248, 518255), (310, 414604), (620, 207302), (1240, 103651)]