6721780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 15410304

約数和(自身を除く): 8688524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 251, 260, 412, 502, 515, 1004, 1030, 1255, 1339, 2060, 2510, 2678, 3263, 5020, 5356, 6526, 6695, 13052, 13390, 16315, 25853, 26780, 32630, 51706, 65260, 103412, 129265, 258530, 336089, 517060, 672178, 1344356, 1680445, 3360890, 6721780]

約数ペア:

[(1, 6721780), (2, 3360890), (4, 1680445), (5, 1344356), (10, 672178), (13, 517060), (20, 336089), (26, 258530), (52, 129265), (65, 103412), (103, 65260), (130, 51706), (206, 32630), (251, 26780), (260, 25853), (412, 16315), (502, 13390), (515, 13052), (1004, 6695), (1030, 6526), (1255, 5356), (1339, 5020), (2060, 3263), (2510, 2678)]