1291013420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{508273}}^1$

素因数の和:508409

約数の個数: 24

約数和(自身を含む): 2732481024

約数和(自身を除く): 1441467604

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 508273, 1016546, 2033092, 2541365, 5082730, 10165460, 64550671, 129101342, 258202684, 322753355, 645506710, 1291013420]

約数ペア:

[(1, 1291013420), (2, 645506710), (4, 322753355), (5, 258202684), (10, 129101342), (20, 64550671), (127, 10165460), (254, 5082730), (508, 2541365), (635, 2033092), (1270, 1016546), (2540, 508273)]