31272280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60139}}^1$

素因数の和:60163

約数の個数: 32

約数和(自身を含む): 75776400

約数和(自身を除く): 44504120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60139, 120278, 240556, 300695, 481112, 601390, 781807, 1202780, 1563614, 2405560, 3127228, 3909035, 6254456, 7818070, 15636140, 31272280]

約数ペア:

[(1, 31272280), (2, 15636140), (4, 7818070), (5, 6254456), (8, 3909035), (10, 3127228), (13, 2405560), (20, 1563614), (26, 1202780), (40, 781807), (52, 601390), (65, 481112), (104, 300695), (130, 240556), (260, 120278), (520, 60139)]