91991000

素因数分解:

$2^3\times 5^3\times {\mathrm{67}}^1\times {\mathrm{1373}}^1$

素因数の和:1461

約数の個数: 64

約数和(自身を含む): 218630880

約数和(自身を除く): 126639880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 125, 134, 200, 250, 268, 335, 500, 536, 670, 1000, 1340, 1373, 1675, 2680, 2746, 3350, 5492, 6700, 6865, 8375, 10984, 13400, 13730, 16750, 27460, 33500, 34325, 54920, 67000, 68650, 91991, 137300, 171625, 183982, 274600, 343250, 367964, 459955, 686500, 735928, 919910, 1373000, 1839820, 2299775, 3679640, 4599550, 9199100, 11498875, 18398200, 22997750, 45995500, 91991000]

約数ペア:

[(1, 91991000), (2, 45995500), (4, 22997750), (5, 18398200), (8, 11498875), (10, 9199100), (20, 4599550), (25, 3679640), (40, 2299775), (50, 1839820), (67, 1373000), (100, 919910), (125, 735928), (134, 686500), (200, 459955), (250, 367964), (268, 343250), (335, 274600), (500, 183982), (536, 171625), (670, 137300), (1000, 91991), (1340, 68650), (1373, 67000), (1675, 54920), (2680, 34325), (2746, 33500), (3350, 27460), (5492, 16750), (6700, 13730), (6865, 13400), (8375, 10984)]