49880920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20443}}^1$

素因数の和:20515

約数の個数: 32

約数和(自身を含む): 114077520

約数和(自身を除く): 64196600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 20443, 40886, 81772, 102215, 163544, 204430, 408860, 817720, 1247023, 2494046, 4988092, 6235115, 9976184, 12470230, 24940460, 49880920]

約数ペア:

[(1, 49880920), (2, 24940460), (4, 12470230), (5, 9976184), (8, 6235115), (10, 4988092), (20, 2494046), (40, 1247023), (61, 817720), (122, 408860), (244, 204430), (305, 163544), (488, 102215), (610, 81772), (1220, 40886), (2440, 20443)]