1662640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2969}}^1$

素因数の和:2989

約数の個数: 40

約数和(自身を含む): 4419360

約数和(自身を除く): 2756720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2969, 5938, 11876, 14845, 20783, 23752, 29690, 41566, 47504, 59380, 83132, 103915, 118760, 166264, 207830, 237520, 332528, 415660, 831320, 1662640]

約数ペア:

[(1, 1662640), (2, 831320), (4, 415660), (5, 332528), (7, 237520), (8, 207830), (10, 166264), (14, 118760), (16, 103915), (20, 83132), (28, 59380), (35, 47504), (40, 41566), (56, 29690), (70, 23752), (80, 20783), (112, 14845), (140, 11876), (280, 5938), (560, 2969)]