12561789920

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{7451}}^1$

素因数の和:7764

約数の個数: 96

約数和(自身を含む): 30523451616

約数和(自身を除く): 17961661696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 257, 328, 410, 514, 656, 820, 1028, 1285, 1312, 1640, 2056, 2570, 3280, 4112, 5140, 6560, 7451, 8224, 10280, 10537, 14902, 20560, 21074, 29804, 37255, 41120, 42148, 52685, 59608, 74510, 84296, 105370, 119216, 149020, 168592, 210740, 238432, 298040, 305491, 337184, 421480, 596080, 610982, 842960, 1192160, 1221964, 1527455, 1685920, 1914907, 2443928, 3054910, 3829814, 4887856, 6109820, 7659628, 9574535, 9775712, 12219640, 15319256, 19149070, 24439280, 30638512, 38298140, 48878560, 61277024, 76596280, 78511187, 153192560, 157022374, 306385120, 314044748, 392555935, 628089496, 785111870, 1256178992, 1570223740, 2512357984, 3140447480, 6280894960, 12561789920]

約数ペア:

[(1, 12561789920), (2, 6280894960), (4, 3140447480), (5, 2512357984), (8, 1570223740), (10, 1256178992), (16, 785111870), (20, 628089496), (32, 392555935), (40, 314044748), (41, 306385120), (80, 157022374), (82, 153192560), (160, 78511187), (164, 76596280), (205, 61277024), (257, 48878560), (328, 38298140), (410, 30638512), (514, 24439280), (656, 19149070), (820, 15319256), (1028, 12219640), (1285, 9775712), (1312, 9574535), (1640, 7659628), (2056, 6109820), (2570, 4887856), (3280, 3829814), (4112, 3054910), (5140, 2443928), (6560, 1914907), (7451, 1685920), (8224, 1527455), (10280, 1221964), (10537, 1192160), (14902, 842960), (20560, 610982), (21074, 596080), (29804, 421480), (37255, 337184), (41120, 305491), (42148, 298040), (52685, 238432), (59608, 210740), (74510, 168592), (84296, 149020), (105370, 119216)]