123462640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{220469}}^1$

素因数の和:220489

約数の個数: 40

約数和(自身を含む): 328059360

約数和(自身を除く): 204596720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 220469, 440938, 881876, 1102345, 1543283, 1763752, 2204690, 3086566, 3527504, 4409380, 6173132, 7716415, 8818760, 12346264, 15432830, 17637520, 24692528, 30865660, 61731320, 123462640]

約数ペア:

[(1, 123462640), (2, 61731320), (4, 30865660), (5, 24692528), (7, 17637520), (8, 15432830), (10, 12346264), (14, 8818760), (16, 7716415), (20, 6173132), (28, 4409380), (35, 3527504), (40, 3086566), (56, 2204690), (70, 1763752), (80, 1543283), (112, 1102345), (140, 881876), (280, 440938), (560, 220469)]