20120995408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40566523}}^1$

素因数の和:40566562

約数の個数: 20

約数和(自身を含む): 40241991808

約数和(自身を除く): 20120996400

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40566523, 81133046, 162266092, 324532184, 649064368, 1257562213, 2515124426, 5030248852, 10060497704, 20120995408]

約数ペア:

[(1, 20120995408), (2, 10060497704), (4, 5030248852), (8, 2515124426), (16, 1257562213), (31, 649064368), (62, 324532184), (124, 162266092), (248, 81133046), (496, 40566523)]