209031388

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 423610880

約数和(自身を除く): 214579492

約数列:

[1, 2, 4, 17, 19, 31, 34, 38, 62, 68, 76, 124, 289, 307, 323, 527, 578, 589, 614, 646, 1054, 1156, 1178, 1228, 1292, 2108, 2356, 5219, 5491, 5833, 8959, 9517, 10013, 10438, 10982, 11666, 17918, 19034, 20026, 20876, 21964, 23332, 35836, 38068, 40052, 88723, 99161, 161789, 170221, 177446, 180823, 198322, 323578, 340442, 354892, 361646, 396644, 647156, 680884, 723292, 1685737, 2750413, 3073991, 3371474, 5500826, 6147982, 6742948, 11001652, 12295964, 52257847, 104515694, 209031388]

約数ペア:

[(1, 209031388), (2, 104515694), (4, 52257847), (17, 12295964), (19, 11001652), (31, 6742948), (34, 6147982), (38, 5500826), (62, 3371474), (68, 3073991), (76, 2750413), (124, 1685737), (289, 723292), (307, 680884), (323, 647156), (527, 396644), (578, 361646), (589, 354892), (614, 340442), (646, 323578), (1054, 198322), (1156, 180823), (1178, 177446), (1228, 170221), (1292, 161789), (2108, 99161), (2356, 88723), (5219, 40052), (5491, 38068), (5833, 35836), (8959, 23332), (9517, 21964), (10013, 20876), (10438, 20026), (10982, 19034), (11666, 17918)]