259969000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 646963200

約数和(自身を除く): 386994200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 89, 92, 100, 115, 125, 127, 178, 184, 200, 230, 250, 254, 356, 445, 460, 500, 508, 575, 635, 712, 890, 920, 1000, 1016, 1150, 1270, 1780, 2047, 2225, 2300, 2540, 2875, 2921, 3175, 3560, 4094, 4450, 4600, 5080, 5750, 5842, 6350, 8188, 8900, 10235, 11125, 11303, 11500, 11684, 12700, 14605, 15875, 16376, 17800, 20470, 22250, 22606, 23000, 23368, 25400, 29210, 31750, 40940, 44500, 45212, 51175, 56515, 58420, 63500, 73025, 81880, 89000, 90424, 102350, 113030, 116840, 127000, 146050, 204700, 226060, 255875, 259969, 282575, 292100, 365125, 409400, 452120, 511750, 519938, 565150, 584200, 730250, 1023500, 1039876, 1130300, 1299845, 1412875, 1460500, 2047000, 2079752, 2260600, 2599690, 2825750, 2921000, 5199380, 5651500, 6499225, 10398760, 11303000, 12998450, 25996900, 32496125, 51993800, 64992250, 129984500, 259969000]

約数ペア:

[(1, 259969000), (2, 129984500), (4, 64992250), (5, 51993800), (8, 32496125), (10, 25996900), (20, 12998450), (23, 11303000), (25, 10398760), (40, 6499225), (46, 5651500), (50, 5199380), (89, 2921000), (92, 2825750), (100, 2599690), (115, 2260600), (125, 2079752), (127, 2047000), (178, 1460500), (184, 1412875), (200, 1299845), (230, 1130300), (250, 1039876), (254, 1023500), (356, 730250), (445, 584200), (460, 565150), (500, 519938), (508, 511750), (575, 452120), (635, 409400), (712, 365125), (890, 292100), (920, 282575), (1000, 259969), (1016, 255875), (1150, 226060), (1270, 204700), (1780, 146050), (2047, 127000), (2225, 116840), (2300, 113030), (2540, 102350), (2875, 90424), (2921, 89000), (3175, 81880), (3560, 73025), (4094, 63500), (4450, 58420), (4600, 56515), (5080, 51175), (5750, 45212), (5842, 44500), (6350, 40940), (8188, 31750), (8900, 29210), (10235, 25400), (11125, 23368), (11303, 23000), (11500, 22606), (11684, 22250), (12700, 20470), (14605, 17800), (15875, 16376)]