208814408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1759}}^1$

素因数の和:1866

約数の個数: 64

約数和(自身を含む): 456192000

約数和(自身を除く): 247377592

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 71, 76, 88, 142, 152, 209, 284, 418, 568, 781, 836, 1349, 1562, 1672, 1759, 2698, 3124, 3518, 5396, 6248, 7036, 10792, 14072, 14839, 19349, 29678, 33421, 38698, 59356, 66842, 77396, 118712, 124889, 133684, 154792, 249778, 267368, 367631, 499556, 735262, 999112, 1373779, 1470524, 2372891, 2747558, 2941048, 4745782, 5495116, 9491564, 10990232, 18983128, 26101801, 52203602, 104407204, 208814408]

約数ペア:

[(1, 208814408), (2, 104407204), (4, 52203602), (8, 26101801), (11, 18983128), (19, 10990232), (22, 9491564), (38, 5495116), (44, 4745782), (71, 2941048), (76, 2747558), (88, 2372891), (142, 1470524), (152, 1373779), (209, 999112), (284, 735262), (418, 499556), (568, 367631), (781, 267368), (836, 249778), (1349, 154792), (1562, 133684), (1672, 124889), (1759, 118712), (2698, 77396), (3124, 66842), (3518, 59356), (5396, 38698), (6248, 33421), (7036, 29678), (10792, 19349), (14072, 14839)]