77891240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1867}}^1$

素因数の和:2034

約数の個数: 64

約数和(自身を含む): 201744000

約数和(自身を除く): 123852760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 1867, 2086, 2980, 3734, 4172, 5215, 5960, 7468, 8344, 9335, 10430, 13069, 14936, 18670, 20860, 26138, 37340, 41720, 52276, 65345, 74680, 104552, 130690, 261380, 278183, 522760, 556366, 1112732, 1390915, 1947281, 2225464, 2781830, 3894562, 5563660, 7789124, 9736405, 11127320, 15578248, 19472810, 38945620, 77891240]

約数ペア:

[(1, 77891240), (2, 38945620), (4, 19472810), (5, 15578248), (7, 11127320), (8, 9736405), (10, 7789124), (14, 5563660), (20, 3894562), (28, 2781830), (35, 2225464), (40, 1947281), (56, 1390915), (70, 1112732), (140, 556366), (149, 522760), (280, 278183), (298, 261380), (596, 130690), (745, 104552), (1043, 74680), (1192, 65345), (1490, 52276), (1867, 41720), (2086, 37340), (2980, 26138), (3734, 20860), (4172, 18670), (5215, 14936), (5960, 13069), (7468, 10430), (8344, 9335)]