77951720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25309}}^1$

素因数の和:25338

約数の個数: 64

約数和(自身を含む): 218678400

約数和(自身を除く): 140726680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 25309, 50618, 101236, 126545, 177163, 202472, 253090, 278399, 354326, 506180, 556798, 708652, 885815, 1012360, 1113596, 1391995, 1417304, 1771630, 1948793, 2227192, 2783990, 3543260, 3897586, 5567980, 7086520, 7795172, 9743965, 11135960, 15590344, 19487930, 38975860, 77951720]

約数ペア:

[(1, 77951720), (2, 38975860), (4, 19487930), (5, 15590344), (7, 11135960), (8, 9743965), (10, 7795172), (11, 7086520), (14, 5567980), (20, 3897586), (22, 3543260), (28, 2783990), (35, 2227192), (40, 1948793), (44, 1771630), (55, 1417304), (56, 1391995), (70, 1113596), (77, 1012360), (88, 885815), (110, 708652), (140, 556798), (154, 506180), (220, 354326), (280, 278399), (308, 253090), (385, 202472), (440, 177163), (616, 126545), (770, 101236), (1540, 50618), (3080, 25309)]