7777272940

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1019}}^1\times {\mathrm{1451}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 16421771520

約数和(自身を除く): 8644498580

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1019, 1052, 1315, 1451, 2038, 2630, 2902, 4076, 5095, 5260, 5804, 7255, 10190, 14510, 20380, 29020, 267997, 381613, 535994, 763226, 1071988, 1339985, 1478569, 1526452, 1908065, 2679970, 2957138, 3816130, 5359940, 5914276, 7392845, 7632260, 14785690, 29571380, 388863647, 777727294, 1555454588, 1944318235, 3888636470, 7777272940]

約数ペア:

[(1, 7777272940), (2, 3888636470), (4, 1944318235), (5, 1555454588), (10, 777727294), (20, 388863647), (263, 29571380), (526, 14785690), (1019, 7632260), (1052, 7392845), (1315, 5914276), (1451, 5359940), (2038, 3816130), (2630, 2957138), (2902, 2679970), (4076, 1908065), (5095, 1526452), (5260, 1478569), (5804, 1339985), (7255, 1071988), (10190, 763226), (14510, 535994), (20380, 381613), (29020, 267997)]