161521052

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3943}}^1$

素因数の和:3991

約数の個数: 72

約数和(自身を含む): 377677440

約数和(自身を除く): 216156388

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 49, 76, 77, 98, 133, 154, 196, 209, 266, 308, 418, 532, 539, 836, 931, 1078, 1463, 1862, 2156, 2926, 3724, 3943, 5852, 7886, 10241, 15772, 20482, 27601, 40964, 43373, 55202, 74917, 86746, 110404, 149834, 173492, 193207, 299668, 303611, 386414, 524419, 607222, 772828, 824087, 1048838, 1214444, 1648174, 2097676, 2125277, 3296348, 3670933, 4250554, 5768609, 7341866, 8501108, 11537218, 14683732, 23074436, 40380263, 80760526, 161521052]

約数ペア:

[(1, 161521052), (2, 80760526), (4, 40380263), (7, 23074436), (11, 14683732), (14, 11537218), (19, 8501108), (22, 7341866), (28, 5768609), (38, 4250554), (44, 3670933), (49, 3296348), (76, 2125277), (77, 2097676), (98, 1648174), (133, 1214444), (154, 1048838), (196, 824087), (209, 772828), (266, 607222), (308, 524419), (418, 386414), (532, 303611), (539, 299668), (836, 193207), (931, 173492), (1078, 149834), (1463, 110404), (1862, 86746), (2156, 74917), (2926, 55202), (3724, 43373), (3943, 40964), (5852, 27601), (7886, 20482), (10241, 15772)]