257054480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103651}}^1$

素因数の和:103695

約数の個数: 40

約数和(自身を含む): 616936704

約数和(自身を除く): 359882224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 103651, 207302, 414604, 518255, 829208, 1036510, 1658416, 2073020, 3213181, 4146040, 6426362, 8292080, 12852724, 16065905, 25705448, 32131810, 51410896, 64263620, 128527240, 257054480]

約数ペア:

[(1, 257054480), (2, 128527240), (4, 64263620), (5, 51410896), (8, 32131810), (10, 25705448), (16, 16065905), (20, 12852724), (31, 8292080), (40, 6426362), (62, 4146040), (80, 3213181), (124, 2073020), (155, 1658416), (248, 1036510), (310, 829208), (496, 518255), (620, 414604), (1240, 207302), (2480, 103651)]