31808088

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1999}}^1$

素因数の和:2041

約数の個数: 96

約数和(自身を含む): 98280000

約数和(自身を除く): 66471912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 17, 18, 24, 26, 34, 36, 39, 51, 52, 68, 72, 78, 102, 104, 117, 136, 153, 156, 204, 221, 234, 306, 312, 408, 442, 468, 612, 663, 884, 936, 1224, 1326, 1768, 1989, 1999, 2652, 3978, 3998, 5304, 5997, 7956, 7996, 11994, 15912, 15992, 17991, 23988, 25987, 33983, 35982, 47976, 51974, 67966, 71964, 77961, 101949, 103948, 135932, 143928, 155922, 203898, 207896, 233883, 271864, 305847, 311844, 407796, 441779, 467766, 611694, 623688, 815592, 883558, 935532, 1223388, 1325337, 1767116, 1871064, 2446776, 2650674, 3534232, 3976011, 5301348, 7952022, 10602696, 15904044, 31808088]

約数ペア:

[(1, 31808088), (2, 15904044), (3, 10602696), (4, 7952022), (6, 5301348), (8, 3976011), (9, 3534232), (12, 2650674), (13, 2446776), (17, 1871064), (18, 1767116), (24, 1325337), (26, 1223388), (34, 935532), (36, 883558), (39, 815592), (51, 623688), (52, 611694), (68, 467766), (72, 441779), (78, 407796), (102, 311844), (104, 305847), (117, 271864), (136, 233883), (153, 207896), (156, 203898), (204, 155922), (221, 143928), (234, 135932), (306, 103948), (312, 101949), (408, 77961), (442, 71964), (468, 67966), (612, 51974), (663, 47976), (884, 35982), (936, 33983), (1224, 25987), (1326, 23988), (1768, 17991), (1989, 15992), (1999, 15912), (2652, 11994), (3978, 7996), (3998, 7956), (5304, 5997)]