20485610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{787}}^1$

素因数の和:950

約数の個数: 32

約数和(自身を含む): 39147840

約数和(自身を除く): 18662230

約数列:

[1, 2, 5, 10, 19, 38, 95, 137, 190, 274, 685, 787, 1370, 1574, 2603, 3935, 5206, 7870, 13015, 14953, 26030, 29906, 74765, 107819, 149530, 215638, 539095, 1078190, 2048561, 4097122, 10242805, 20485610]

約数ペア:

[(1, 20485610), (2, 10242805), (5, 4097122), (10, 2048561), (19, 1078190), (38, 539095), (95, 215638), (137, 149530), (190, 107819), (274, 74765), (685, 29906), (787, 26030), (1370, 14953), (1574, 13015), (2603, 7870), (3935, 5206)]