28771016

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 60264000

約数和(自身を除く): 31492984

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 61, 76, 107, 116, 122, 152, 214, 232, 244, 428, 488, 551, 856, 1102, 1159, 1769, 2033, 2204, 2318, 3103, 3538, 4066, 4408, 4636, 6206, 6527, 7076, 8132, 9272, 12412, 13054, 14152, 16264, 24824, 26108, 33611, 52216, 58957, 67222, 117914, 124013, 134444, 189283, 235828, 248026, 268888, 378566, 471656, 496052, 757132, 992104, 1514264, 3596377, 7192754, 14385508, 28771016]

約数ペア:

[(1, 28771016), (2, 14385508), (4, 7192754), (8, 3596377), (19, 1514264), (29, 992104), (38, 757132), (58, 496052), (61, 471656), (76, 378566), (107, 268888), (116, 248026), (122, 235828), (152, 189283), (214, 134444), (232, 124013), (244, 117914), (428, 67222), (488, 58957), (551, 52216), (856, 33611), (1102, 26108), (1159, 24824), (1769, 16264), (2033, 14152), (2204, 13054), (2318, 12412), (3103, 9272), (3538, 8132), (4066, 7076), (4408, 6527), (4636, 6206)]