78875020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{1471}}^1$

素因数の和:1870

約数の個数: 48

約数和(自身を含む): 189923328

約数和(自身を除く): 111048308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 383, 766, 1471, 1532, 1915, 2681, 2942, 3830, 5362, 5884, 7355, 7660, 10297, 10724, 13405, 14710, 20594, 26810, 29420, 41188, 51485, 53620, 102970, 205940, 563393, 1126786, 2253572, 2816965, 3943751, 5633930, 7887502, 11267860, 15775004, 19718755, 39437510, 78875020]

約数ペア:

[(1, 78875020), (2, 39437510), (4, 19718755), (5, 15775004), (7, 11267860), (10, 7887502), (14, 5633930), (20, 3943751), (28, 2816965), (35, 2253572), (70, 1126786), (140, 563393), (383, 205940), (766, 102970), (1471, 53620), (1532, 51485), (1915, 41188), (2681, 29420), (2942, 26810), (3830, 20594), (5362, 14710), (5884, 13405), (7355, 10724), (7660, 10297)]