31831820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{373}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 71251488

約数和(自身を除く): 39419668

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 251, 340, 373, 502, 746, 1004, 1255, 1492, 1865, 2510, 3730, 4267, 5020, 6341, 7460, 8534, 12682, 17068, 21335, 25364, 31705, 42670, 63410, 85340, 93623, 126820, 187246, 374492, 468115, 936230, 1591591, 1872460, 3183182, 6366364, 7957955, 15915910, 31831820]

約数ペア:

[(1, 31831820), (2, 15915910), (4, 7957955), (5, 6366364), (10, 3183182), (17, 1872460), (20, 1591591), (34, 936230), (68, 468115), (85, 374492), (170, 187246), (251, 126820), (340, 93623), (373, 85340), (502, 63410), (746, 42670), (1004, 31705), (1255, 25364), (1492, 21335), (1865, 17068), (2510, 12682), (3730, 8534), (4267, 7460), (5020, 6341)]