77761720

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6211}}^1$

素因数の和:6535

約数の個数: 32

約数和(自身を含む): 175551120

約数和(自身を除く): 97789400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6211, 6260, 12422, 12520, 24844, 31055, 49688, 62110, 124220, 248440, 1944043, 3888086, 7776172, 9720215, 15552344, 19440430, 38880860, 77761720]

約数ペア:

[(1, 77761720), (2, 38880860), (4, 19440430), (5, 15552344), (8, 9720215), (10, 7776172), (20, 3888086), (40, 1944043), (313, 248440), (626, 124220), (1252, 62110), (1565, 49688), (2504, 31055), (3130, 24844), (6211, 12520), (6260, 12422)]