20216647568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{2383}}^1\times {\mathrm{40787}}^1$

素因数の和:43191

約数の個数: 40

約数和(自身を含む): 42201548928

約数和(自身を除く): 21984901360

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 2383, 4766, 9532, 19064, 30979, 38128, 40787, 61958, 81574, 123916, 163148, 247832, 326296, 495664, 530231, 652592, 1060462, 2120924, 4241848, 8483696, 97195421, 194390842, 388781684, 777563368, 1263540473, 1555126736, 2527080946, 5054161892, 10108323784, 20216647568]

約数ペア:

[(1, 20216647568), (2, 10108323784), (4, 5054161892), (8, 2527080946), (13, 1555126736), (16, 1263540473), (26, 777563368), (52, 388781684), (104, 194390842), (208, 97195421), (2383, 8483696), (4766, 4241848), (9532, 2120924), (19064, 1060462), (30979, 652592), (38128, 530231), (40787, 495664), (61958, 326296), (81574, 247832), (123916, 163148)]