640233776

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6563}}^1$

素因数の和:6658

約数の個数: 80

約数和(自身を含む): 1549734144

約数和(自身を除く): 909500368

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 67, 91, 104, 112, 134, 182, 208, 268, 364, 469, 536, 728, 871, 938, 1072, 1456, 1742, 1876, 3484, 3752, 6097, 6563, 6968, 7504, 12194, 13126, 13936, 24388, 26252, 45941, 48776, 52504, 85319, 91882, 97552, 105008, 170638, 183764, 341276, 367528, 439721, 597233, 682552, 735056, 879442, 1194466, 1365104, 1758884, 2388932, 3078047, 3517768, 4777864, 5716373, 6156094, 7035536, 9555728, 11432746, 12312188, 22865492, 24624376, 40014611, 45730984, 49248752, 80029222, 91461968, 160058444, 320116888, 640233776]

約数ペア:

[(1, 640233776), (2, 320116888), (4, 160058444), (7, 91461968), (8, 80029222), (13, 49248752), (14, 45730984), (16, 40014611), (26, 24624376), (28, 22865492), (52, 12312188), (56, 11432746), (67, 9555728), (91, 7035536), (104, 6156094), (112, 5716373), (134, 4777864), (182, 3517768), (208, 3078047), (268, 2388932), (364, 1758884), (469, 1365104), (536, 1194466), (728, 879442), (871, 735056), (938, 682552), (1072, 597233), (1456, 439721), (1742, 367528), (1876, 341276), (3484, 183764), (3752, 170638), (6097, 105008), (6563, 97552), (6968, 91882), (7504, 85319), (12194, 52504), (13126, 48776), (13936, 45941), (24388, 26252)]