31407860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{389}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 72334080

約数和(自身を除く): 40926220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 367, 389, 734, 778, 1468, 1556, 1835, 1945, 3670, 3890, 4037, 4279, 7340, 7780, 8074, 8558, 16148, 17116, 20185, 21395, 40370, 42790, 80740, 85580, 142763, 285526, 571052, 713815, 1427630, 1570393, 2855260, 3140786, 6281572, 7851965, 15703930, 31407860]

約数ペア:

[(1, 31407860), (2, 15703930), (4, 7851965), (5, 6281572), (10, 3140786), (11, 2855260), (20, 1570393), (22, 1427630), (44, 713815), (55, 571052), (110, 285526), (220, 142763), (367, 85580), (389, 80740), (734, 42790), (778, 40370), (1468, 21395), (1556, 20185), (1835, 17116), (1945, 16148), (3670, 8558), (3890, 8074), (4037, 7780), (4279, 7340)]