28149940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15467}}^1$

素因数の和:15496

約数の個数: 48

約数和(自身を含む): 72761472

約数和(自身を除く): 44611532

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15467, 30934, 61868, 77335, 108269, 154670, 201071, 216538, 309340, 402142, 433076, 541345, 804284, 1005355, 1082690, 1407497, 2010710, 2165380, 2814994, 4021420, 5629988, 7037485, 14074970, 28149940]

約数ペア:

[(1, 28149940), (2, 14074970), (4, 7037485), (5, 5629988), (7, 4021420), (10, 2814994), (13, 2165380), (14, 2010710), (20, 1407497), (26, 1082690), (28, 1005355), (35, 804284), (52, 541345), (65, 433076), (70, 402142), (91, 309340), (130, 216538), (140, 201071), (182, 154670), (260, 108269), (364, 77335), (455, 61868), (910, 30934), (1820, 15467)]