18781633270

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{461}}^1\times {\mathrm{739}}^1$

素因数の和:1393

約数の個数: 64

約数和(自身を含む): 35076888000

約数和(自身を除く): 16295254730

約数列:

[1, 2, 5, 10, 37, 74, 149, 185, 298, 370, 461, 739, 745, 922, 1478, 1490, 2305, 3695, 4610, 5513, 7390, 11026, 17057, 27343, 27565, 34114, 54686, 55130, 68689, 85285, 110111, 136715, 137378, 170570, 220222, 273430, 340679, 343445, 550555, 681358, 686890, 1101110, 1703395, 2541493, 3406790, 4074107, 5082986, 8148214, 12605123, 12707465, 20370535, 25210246, 25414930, 40741070, 50761171, 63025615, 101522342, 126051230, 253805855, 507611710, 1878163327, 3756326654, 9390816635, 18781633270]

約数ペア:

[(1, 18781633270), (2, 9390816635), (5, 3756326654), (10, 1878163327), (37, 507611710), (74, 253805855), (149, 126051230), (185, 101522342), (298, 63025615), (370, 50761171), (461, 40741070), (739, 25414930), (745, 25210246), (922, 20370535), (1478, 12707465), (1490, 12605123), (2305, 8148214), (3695, 5082986), (4610, 4074107), (5513, 3406790), (7390, 2541493), (11026, 1703395), (17057, 1101110), (27343, 686890), (27565, 681358), (34114, 550555), (54686, 343445), (55130, 340679), (68689, 273430), (85285, 220222), (110111, 170570), (136715, 137378)]