19685921072

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{4993}}^1\times {\mathrm{7949}}^1$

素因数の和:12981

約数の個数: 40

約数和(自身を含む): 39384681600

約数和(自身を除く): 19698760528

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 4993, 7949, 9986, 15898, 19972, 31796, 39944, 63592, 79888, 127184, 154783, 246419, 309566, 492838, 619132, 985676, 1238264, 1971352, 2476528, 3942704, 39689357, 79378714, 158757428, 317514856, 635029712, 1230370067, 2460740134, 4921480268, 9842960536, 19685921072]

約数ペア:

[(1, 19685921072), (2, 9842960536), (4, 4921480268), (8, 2460740134), (16, 1230370067), (31, 635029712), (62, 317514856), (124, 158757428), (248, 79378714), (496, 39689357), (4993, 3942704), (7949, 2476528), (9986, 1971352), (15898, 1238264), (19972, 985676), (31796, 619132), (39944, 492838), (63592, 309566), (79888, 246419), (127184, 154783)]