667993456

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:691

約数の個数: 80

約数和(自身を含む): 1449629440

約数和(自身を除く): 781635984

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 169, 208, 248, 338, 403, 496, 613, 676, 806, 1226, 1352, 1612, 2197, 2452, 2704, 3224, 4394, 4904, 5239, 6448, 7969, 8788, 9808, 10478, 15938, 17576, 19003, 20956, 31876, 35152, 38006, 41912, 63752, 68107, 76012, 83824, 103597, 127504, 136214, 152024, 207194, 247039, 272428, 304048, 414388, 494078, 544856, 828776, 988156, 1089712, 1346761, 1657552, 1976312, 2693522, 3211507, 3952624, 5387044, 6423014, 10774088, 12846028, 21548176, 25692056, 41749591, 51384112, 83499182, 166998364, 333996728, 667993456]

約数ペア:

[(1, 667993456), (2, 333996728), (4, 166998364), (8, 83499182), (13, 51384112), (16, 41749591), (26, 25692056), (31, 21548176), (52, 12846028), (62, 10774088), (104, 6423014), (124, 5387044), (169, 3952624), (208, 3211507), (248, 2693522), (338, 1976312), (403, 1657552), (496, 1346761), (613, 1089712), (676, 988156), (806, 828776), (1226, 544856), (1352, 494078), (1612, 414388), (2197, 304048), (2452, 272428), (2704, 247039), (3224, 207194), (4394, 152024), (4904, 136214), (5239, 127504), (6448, 103597), (7969, 83824), (8788, 76012), (9808, 68107), (10478, 63752), (15938, 41912), (17576, 38006), (19003, 35152), (20956, 31876)]