9620920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3943}}^1$

素因数の和:4015

約数の個数: 32

約数和(自身を含む): 22007520

約数和(自身を除く): 12386600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3943, 7886, 15772, 19715, 31544, 39430, 78860, 157720, 240523, 481046, 962092, 1202615, 1924184, 2405230, 4810460, 9620920]

約数ペア:

[(1, 9620920), (2, 4810460), (4, 2405230), (5, 1924184), (8, 1202615), (10, 962092), (20, 481046), (40, 240523), (61, 157720), (122, 78860), (244, 39430), (305, 31544), (488, 19715), (610, 15772), (1220, 7886), (2440, 3943)]