639160886

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{49463}}^1$

素因数の和:49556

約数の個数: 32

約数和(自身を含む): 1196633088

約数和(自身を除く): 557472202

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1846, 6461, 12922, 49463, 98926, 346241, 643019, 692482, 1286038, 3511873, 4501133, 7023746, 9002266, 24583111, 45654349, 49166222, 91308698, 319580443, 639160886]

約数ペア:

[(1, 639160886), (2, 319580443), (7, 91308698), (13, 49166222), (14, 45654349), (26, 24583111), (71, 9002266), (91, 7023746), (142, 4501133), (182, 3511873), (497, 1286038), (923, 692482), (994, 643019), (1846, 346241), (6461, 98926), (12922, 49463)]