19780928

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{18181}}^1$

素因数の和:18210

約数の個数: 28

約数和(自身を含む): 41564052

約数和(自身を除く): 21783124

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 18181, 36362, 72724, 145448, 290896, 309077, 581792, 618154, 1163584, 1236308, 2472616, 4945232, 9890464, 19780928]

約数ペア:

[(1, 19780928), (2, 9890464), (4, 4945232), (8, 2472616), (16, 1236308), (17, 1163584), (32, 618154), (34, 581792), (64, 309077), (68, 290896), (136, 145448), (272, 72724), (544, 36362), (1088, 18181)]