51620720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{33961}}^1$

素因数の和:33993

約数の個数: 40

約数和(自身を含む): 126338640

約数和(自身を除く): 74717920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 33961, 67922, 135844, 169805, 271688, 339610, 543376, 645259, 679220, 1290518, 1358440, 2581036, 2716880, 3226295, 5162072, 6452590, 10324144, 12905180, 25810360, 51620720]

約数ペア:

[(1, 51620720), (2, 25810360), (4, 12905180), (5, 10324144), (8, 6452590), (10, 5162072), (16, 3226295), (19, 2716880), (20, 2581036), (38, 1358440), (40, 1290518), (76, 679220), (80, 645259), (95, 543376), (152, 339610), (190, 271688), (304, 169805), (380, 135844), (760, 67922), (1520, 33961)]