28942740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6991}}^1$

素因数の和:7029

約数の個数: 72

約数和(自身を含む): 91623168

約数和(自身を除く): 62680428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 6991, 13982, 20973, 27964, 34955, 41946, 62919, 69910, 83892, 104865, 125838, 139820, 160793, 209730, 251676, 314595, 321586, 419460, 482379, 629190, 643172, 803965, 964758, 1258380, 1447137, 1607930, 1929516, 2411895, 2894274, 3215860, 4823790, 5788548, 7235685, 9647580, 14471370, 28942740]

約数ペア:

[(1, 28942740), (2, 14471370), (3, 9647580), (4, 7235685), (5, 5788548), (6, 4823790), (9, 3215860), (10, 2894274), (12, 2411895), (15, 1929516), (18, 1607930), (20, 1447137), (23, 1258380), (30, 964758), (36, 803965), (45, 643172), (46, 629190), (60, 482379), (69, 419460), (90, 321586), (92, 314595), (115, 251676), (138, 209730), (180, 160793), (207, 139820), (230, 125838), (276, 104865), (345, 83892), (414, 69910), (460, 62919), (690, 41946), (828, 34955), (1035, 27964), (1380, 20973), (2070, 13982), (4140, 6991)]