2561593984

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:682

約数の個数: 128

約数和(自身を含む): 5646067200

約数和(自身を除く): 3084473216

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 61, 62, 64, 76, 122, 124, 128, 152, 244, 248, 304, 488, 496, 557, 589, 608, 976, 992, 1114, 1159, 1178, 1216, 1891, 1952, 1984, 2228, 2318, 2356, 2432, 3782, 3904, 3968, 4456, 4636, 4712, 7564, 7808, 8912, 9272, 9424, 10583, 15128, 17267, 17824, 18544, 18848, 21166, 30256, 33977, 34534, 35648, 35929, 37088, 37696, 42332, 60512, 67954, 69068, 71296, 71858, 74176, 75392, 84664, 121024, 135908, 138136, 143716, 148352, 169328, 242048, 271816, 276272, 287432, 328073, 338656, 543632, 552544, 574864, 645563, 656146, 677312, 1053287, 1087264, 1105088, 1149728, 1291126, 1312292, 1354624, 2106574, 2174528, 2210176, 2299456, 2582252, 2624584, 4213148, 4349056, 4598912, 5164504, 5249168, 8426296, 10329008, 10498336, 16852592, 20012453, 20658016, 20996672, 33705184, 40024906, 41316032, 41993344, 67410368, 80049812, 82632064, 134820736, 160099624, 320199248, 640398496, 1280796992, 2561593984]

約数ペア:

[(1, 2561593984), (2, 1280796992), (4, 640398496), (8, 320199248), (16, 160099624), (19, 134820736), (31, 82632064), (32, 80049812), (38, 67410368), (61, 41993344), (62, 41316032), (64, 40024906), (76, 33705184), (122, 20996672), (124, 20658016), (128, 20012453), (152, 16852592), (244, 10498336), (248, 10329008), (304, 8426296), (488, 5249168), (496, 5164504), (557, 4598912), (589, 4349056), (608, 4213148), (976, 2624584), (992, 2582252), (1114, 2299456), (1159, 2210176), (1178, 2174528), (1216, 2106574), (1891, 1354624), (1952, 1312292), (1984, 1291126), (2228, 1149728), (2318, 1105088), (2356, 1087264), (2432, 1053287), (3782, 677312), (3904, 656146), (3968, 645563), (4456, 574864), (4636, 552544), (4712, 543632), (7564, 338656), (7808, 328073), (8912, 287432), (9272, 276272), (9424, 271816), (10583, 242048), (15128, 169328), (17267, 148352), (17824, 143716), (18544, 138136), (18848, 135908), (21166, 121024), (30256, 84664), (33977, 75392), (34534, 74176), (35648, 71858), (35929, 71296), (37088, 69068), (37696, 67954), (42332, 60512)]