2653690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 5216400

約数和(自身を除く): 2562710

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 149, 274, 298, 685, 745, 1370, 1490, 1781, 1937, 3562, 3874, 8905, 9685, 17810, 19370, 20413, 40826, 102065, 204130, 265369, 530738, 1326845, 2653690]

約数ペア:

[(1, 2653690), (2, 1326845), (5, 530738), (10, 265369), (13, 204130), (26, 102065), (65, 40826), (130, 20413), (137, 19370), (149, 17810), (274, 9685), (298, 8905), (685, 3874), (745, 3562), (1370, 1937), (1490, 1781)]