27988660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6449}}^1$

素因数の和:6496

約数の個数: 48

約数和(自身を含む): 69350400

約数和(自身を除く): 41361740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6449, 12898, 25796, 32245, 45143, 64490, 90286, 128980, 180572, 199919, 225715, 399838, 451430, 799676, 902860, 999595, 1399433, 1999190, 2798866, 3998380, 5597732, 6997165, 13994330, 27988660]

約数ペア:

[(1, 27988660), (2, 13994330), (4, 6997165), (5, 5597732), (7, 3998380), (10, 2798866), (14, 1999190), (20, 1399433), (28, 999595), (31, 902860), (35, 799676), (62, 451430), (70, 399838), (124, 225715), (140, 199919), (155, 180572), (217, 128980), (310, 90286), (434, 64490), (620, 45143), (868, 32245), (1085, 25796), (2170, 12898), (4340, 6449)]