7197980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 15857856

約数和(自身を除く): 8659876

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 137, 142, 148, 185, 274, 284, 355, 370, 548, 685, 710, 740, 1370, 1420, 2627, 2740, 5069, 5254, 9727, 10138, 10508, 13135, 19454, 20276, 25345, 26270, 38908, 48635, 50690, 52540, 97270, 101380, 194540, 359899, 719798, 1439596, 1799495, 3598990, 7197980]

約数ペア:

[(1, 7197980), (2, 3598990), (4, 1799495), (5, 1439596), (10, 719798), (20, 359899), (37, 194540), (71, 101380), (74, 97270), (137, 52540), (142, 50690), (148, 48635), (185, 38908), (274, 26270), (284, 25345), (355, 20276), (370, 19454), (548, 13135), (685, 10508), (710, 10138), (740, 9727), (1370, 5254), (1420, 5069), (2627, 2740)]