1220920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 2779920

約数和(自身を除く): 1559000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 233, 262, 466, 524, 655, 932, 1048, 1165, 1310, 1864, 2330, 2620, 4660, 5240, 9320, 30523, 61046, 122092, 152615, 244184, 305230, 610460, 1220920]

約数ペア:

[(1, 1220920), (2, 610460), (4, 305230), (5, 244184), (8, 152615), (10, 122092), (20, 61046), (40, 30523), (131, 9320), (233, 5240), (262, 4660), (466, 2620), (524, 2330), (655, 1864), (932, 1310), (1048, 1165)]