18944224

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 42057792

約数和(自身を除く): 23113568

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 113, 124, 169, 208, 226, 248, 338, 403, 416, 452, 496, 676, 806, 904, 992, 1352, 1469, 1612, 1808, 2704, 2938, 3224, 3503, 3616, 5239, 5408, 5876, 6448, 7006, 10478, 11752, 12896, 14012, 19097, 20956, 23504, 28024, 38194, 41912, 45539, 47008, 56048, 76388, 83824, 91078, 112096, 152776, 167648, 182156, 305552, 364312, 592007, 611104, 728624, 1184014, 1457248, 2368028, 4736056, 9472112, 18944224]

約数ペア:

[(1, 18944224), (2, 9472112), (4, 4736056), (8, 2368028), (13, 1457248), (16, 1184014), (26, 728624), (31, 611104), (32, 592007), (52, 364312), (62, 305552), (104, 182156), (113, 167648), (124, 152776), (169, 112096), (208, 91078), (226, 83824), (248, 76388), (338, 56048), (403, 47008), (416, 45539), (452, 41912), (496, 38194), (676, 28024), (806, 23504), (904, 20956), (992, 19097), (1352, 14012), (1469, 12896), (1612, 11752), (1808, 10478), (2704, 7006), (2938, 6448), (3224, 5876), (3503, 5408), (3616, 5239)]