31031140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{419}}^1$

素因数の和:481

約数の個数: 72

約数和(自身を含む): 78039360

約数和(自身を除く): 47008220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 419, 460, 529, 644, 805, 838, 1058, 1610, 1676, 2095, 2116, 2645, 2933, 3220, 3703, 4190, 5290, 5866, 7406, 8380, 9637, 10580, 11732, 14665, 14812, 18515, 19274, 29330, 37030, 38548, 48185, 58660, 67459, 74060, 96370, 134918, 192740, 221651, 269836, 337295, 443302, 674590, 886604, 1108255, 1349180, 1551557, 2216510, 3103114, 4433020, 6206228, 7757785, 15515570, 31031140]

約数ペア:

[(1, 31031140), (2, 15515570), (4, 7757785), (5, 6206228), (7, 4433020), (10, 3103114), (14, 2216510), (20, 1551557), (23, 1349180), (28, 1108255), (35, 886604), (46, 674590), (70, 443302), (92, 337295), (115, 269836), (140, 221651), (161, 192740), (230, 134918), (322, 96370), (419, 74060), (460, 67459), (529, 58660), (644, 48185), (805, 38548), (838, 37030), (1058, 29330), (1610, 19274), (1676, 18515), (2095, 14812), (2116, 14665), (2645, 11732), (2933, 10580), (3220, 9637), (3703, 8380), (4190, 7406), (5290, 5866)]