401942860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{7109}}^1$

素因数の和:7386

約数の個数: 48

約数和(自身を含む): 924527520

約数和(自身を除く): 522584660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 514, 1028, 1285, 2570, 2827, 5140, 5654, 7109, 11308, 14135, 14218, 28270, 28436, 35545, 56540, 71090, 78199, 142180, 156398, 312796, 390995, 781990, 1563980, 1827013, 3654026, 7308052, 9135065, 18270130, 20097143, 36540260, 40194286, 80388572, 100485715, 200971430, 401942860]

約数ペア:

[(1, 401942860), (2, 200971430), (4, 100485715), (5, 80388572), (10, 40194286), (11, 36540260), (20, 20097143), (22, 18270130), (44, 9135065), (55, 7308052), (110, 3654026), (220, 1827013), (257, 1563980), (514, 781990), (1028, 390995), (1285, 312796), (2570, 156398), (2827, 142180), (5140, 78199), (5654, 71090), (7109, 56540), (11308, 35545), (14135, 28436), (14218, 28270)]