81966996

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1999}}^1$

素因数の和:2093

約数の個数: 72

約数和(自身を含む): 222768000

約数和(自身を除く): 140801004

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 67, 68, 102, 134, 153, 201, 204, 268, 306, 402, 603, 612, 804, 1139, 1206, 1999, 2278, 2412, 3417, 3998, 4556, 5997, 6834, 7996, 10251, 11994, 13668, 17991, 20502, 23988, 33983, 35982, 41004, 67966, 71964, 101949, 133933, 135932, 203898, 267866, 305847, 401799, 407796, 535732, 611694, 803598, 1205397, 1223388, 1607196, 2276861, 2410794, 4553722, 4821588, 6830583, 9107444, 13661166, 20491749, 27322332, 40983498, 81966996]

約数ペア:

[(1, 81966996), (2, 40983498), (3, 27322332), (4, 20491749), (6, 13661166), (9, 9107444), (12, 6830583), (17, 4821588), (18, 4553722), (34, 2410794), (36, 2276861), (51, 1607196), (67, 1223388), (68, 1205397), (102, 803598), (134, 611694), (153, 535732), (201, 407796), (204, 401799), (268, 305847), (306, 267866), (402, 203898), (603, 135932), (612, 133933), (804, 101949), (1139, 71964), (1206, 67966), (1999, 41004), (2278, 35982), (2412, 33983), (3417, 23988), (3998, 20502), (4556, 17991), (5997, 13668), (6834, 11994), (7996, 10251)]