1361780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 3338496

約数和(自身を除く): 1976716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 137, 140, 142, 274, 284, 355, 497, 548, 685, 710, 959, 994, 1370, 1420, 1918, 1988, 2485, 2740, 3836, 4795, 4970, 9590, 9727, 9940, 19180, 19454, 38908, 48635, 68089, 97270, 136178, 194540, 272356, 340445, 680890, 1361780]

約数ペア:

[(1, 1361780), (2, 680890), (4, 340445), (5, 272356), (7, 194540), (10, 136178), (14, 97270), (20, 68089), (28, 48635), (35, 38908), (70, 19454), (71, 19180), (137, 9940), (140, 9727), (142, 9590), (274, 4970), (284, 4795), (355, 3836), (497, 2740), (548, 2485), (685, 1988), (710, 1918), (959, 1420), (994, 1370)]