20869792

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{523}}^1$

素因数の和:605

約数の個数: 48

約数和(自身を含む): 43575840

約数和(自身を除く): 22706048

約数列:

[1, 2, 4, 8, 16, 29, 32, 43, 58, 86, 116, 172, 232, 344, 464, 523, 688, 928, 1046, 1247, 1376, 2092, 2494, 4184, 4988, 8368, 9976, 15167, 16736, 19952, 22489, 30334, 39904, 44978, 60668, 89956, 121336, 179912, 242672, 359824, 485344, 652181, 719648, 1304362, 2608724, 5217448, 10434896, 20869792]

約数ペア:

[(1, 20869792), (2, 10434896), (4, 5217448), (8, 2608724), (16, 1304362), (29, 719648), (32, 652181), (43, 485344), (58, 359824), (86, 242672), (116, 179912), (172, 121336), (232, 89956), (344, 60668), (464, 44978), (523, 39904), (688, 30334), (928, 22489), (1046, 19952), (1247, 16736), (1376, 15167), (2092, 9976), (2494, 8368), (4184, 4988)]