861536

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 1940400

約数和(自身を除く): 1078864

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 109, 152, 208, 218, 247, 304, 416, 436, 494, 608, 872, 988, 1417, 1744, 1976, 2071, 2834, 3488, 3952, 4142, 5668, 7904, 8284, 11336, 16568, 22672, 26923, 33136, 45344, 53846, 66272, 107692, 215384, 430768, 861536]

約数ペア:

[(1, 861536), (2, 430768), (4, 215384), (8, 107692), (13, 66272), (16, 53846), (19, 45344), (26, 33136), (32, 26923), (38, 22672), (52, 16568), (76, 11336), (104, 8284), (109, 7904), (152, 5668), (208, 4142), (218, 3952), (247, 3488), (304, 2834), (416, 2071), (436, 1976), (494, 1744), (608, 1417), (872, 988)]