78010540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 167759424

約数和(自身を除く): 89748884

約数列:

[1, 2, 4, 5, 10, 20, 71, 137, 142, 274, 284, 355, 401, 548, 685, 710, 802, 1370, 1420, 1604, 2005, 2740, 4010, 8020, 9727, 19454, 28471, 38908, 48635, 54937, 56942, 97270, 109874, 113884, 142355, 194540, 219748, 274685, 284710, 549370, 569420, 1098740, 3900527, 7801054, 15602108, 19502635, 39005270, 78010540]

約数ペア:

[(1, 78010540), (2, 39005270), (4, 19502635), (5, 15602108), (10, 7801054), (20, 3900527), (71, 1098740), (137, 569420), (142, 549370), (274, 284710), (284, 274685), (355, 219748), (401, 194540), (548, 142355), (685, 113884), (710, 109874), (802, 97270), (1370, 56942), (1420, 54937), (1604, 48635), (2005, 38908), (2740, 28471), (4010, 19454), (8020, 9727)]