387942928

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{21139}}^1$

素因数の和:21215

約数の個数: 40

約数和(自身を含む): 796893440

約数和(自身を除く): 408950512

約数列:

[1, 2, 4, 8, 16, 31, 37, 62, 74, 124, 148, 248, 296, 496, 592, 1147, 2294, 4588, 9176, 18352, 21139, 42278, 84556, 169112, 338224, 655309, 782143, 1310618, 1564286, 2621236, 3128572, 5242472, 6257144, 10484944, 12514288, 24246433, 48492866, 96985732, 193971464, 387942928]

約数ペア:

[(1, 387942928), (2, 193971464), (4, 96985732), (8, 48492866), (16, 24246433), (31, 12514288), (37, 10484944), (62, 6257144), (74, 5242472), (124, 3128572), (148, 2621236), (248, 1564286), (296, 1310618), (496, 782143), (592, 655309), (1147, 338224), (2294, 169112), (4588, 84556), (9176, 42278), (18352, 21139)]