17802890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1291}}^1$

素因数の和:1502

約数の個数: 32

約数和(自身を含む): 36837504

約数和(自身を除く): 19034614

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1291, 1379, 1970, 2582, 2758, 6455, 6895, 9037, 12910, 13790, 18074, 45185, 90370, 254327, 508654, 1271635, 1780289, 2543270, 3560578, 8901445, 17802890]

約数ペア:

[(1, 17802890), (2, 8901445), (5, 3560578), (7, 2543270), (10, 1780289), (14, 1271635), (35, 508654), (70, 254327), (197, 90370), (394, 45185), (985, 18074), (1291, 13790), (1379, 12910), (1970, 9037), (2582, 6895), (2758, 6455)]