31519712

素因数分解:

$2^5\times 7^1\times {\mathrm{223}}^1\times {\mathrm{631}}^1$

素因数の和:871

約数の個数: 48

約数和(自身を含む): 71350272

約数和(自身を除く): 39830560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 223, 224, 446, 631, 892, 1262, 1561, 1784, 2524, 3122, 3568, 4417, 5048, 6244, 7136, 8834, 10096, 12488, 17668, 20192, 24976, 35336, 49952, 70672, 140713, 141344, 281426, 562852, 984991, 1125704, 1969982, 2251408, 3939964, 4502816, 7879928, 15759856, 31519712]

約数ペア:

[(1, 31519712), (2, 15759856), (4, 7879928), (7, 4502816), (8, 3939964), (14, 2251408), (16, 1969982), (28, 1125704), (32, 984991), (56, 562852), (112, 281426), (223, 141344), (224, 140713), (446, 70672), (631, 49952), (892, 35336), (1262, 24976), (1561, 20192), (1784, 17668), (2524, 12488), (3122, 10096), (3568, 8834), (4417, 7136), (5048, 6244)]