19560920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3733}}^1$

素因数の和:3875

約数の個数: 32

約数和(自身を含む): 44359920

約数和(自身を除く): 24799000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3733, 5240, 7466, 14932, 18665, 29864, 37330, 74660, 149320, 489023, 978046, 1956092, 2445115, 3912184, 4890230, 9780460, 19560920]

約数ペア:

[(1, 19560920), (2, 9780460), (4, 4890230), (5, 3912184), (8, 2445115), (10, 1956092), (20, 978046), (40, 489023), (131, 149320), (262, 74660), (524, 37330), (655, 29864), (1048, 18665), (1310, 14932), (2620, 7466), (3733, 5240)]