208158520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{577}}^1$

素因数の和:928

約数の個数: 64

約数和(自身を含む): 486907200

約数和(自身を除く): 278748680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 311, 577, 580, 622, 1154, 1160, 1244, 1555, 2308, 2488, 2885, 3110, 4616, 5770, 6220, 9019, 11540, 12440, 16733, 18038, 23080, 33466, 36076, 45095, 66932, 72152, 83665, 90190, 133864, 167330, 179447, 180380, 334660, 358894, 360760, 669320, 717788, 897235, 1435576, 1794470, 3588940, 5203963, 7177880, 10407926, 20815852, 26019815, 41631704, 52039630, 104079260, 208158520]

約数ペア:

[(1, 208158520), (2, 104079260), (4, 52039630), (5, 41631704), (8, 26019815), (10, 20815852), (20, 10407926), (29, 7177880), (40, 5203963), (58, 3588940), (116, 1794470), (145, 1435576), (232, 897235), (290, 717788), (311, 669320), (577, 360760), (580, 358894), (622, 334660), (1154, 180380), (1160, 179447), (1244, 167330), (1555, 133864), (2308, 90190), (2488, 83665), (2885, 72152), (3110, 66932), (4616, 45095), (5770, 36076), (6220, 33466), (9019, 23080), (11540, 18038), (12440, 16733)]