12940180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 29937600

約数和(自身を除く): 16997420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 449, 524, 655, 898, 1310, 1441, 1796, 2245, 2620, 2882, 4490, 4939, 5764, 7205, 8980, 9878, 14410, 19756, 24695, 28820, 49390, 58819, 98780, 117638, 235276, 294095, 588190, 647009, 1176380, 1294018, 2588036, 3235045, 6470090, 12940180]

約数ペア:

[(1, 12940180), (2, 6470090), (4, 3235045), (5, 2588036), (10, 1294018), (11, 1176380), (20, 647009), (22, 588190), (44, 294095), (55, 235276), (110, 117638), (131, 98780), (220, 58819), (262, 49390), (449, 28820), (524, 24695), (655, 19756), (898, 14410), (1310, 9878), (1441, 8980), (1796, 7205), (2245, 5764), (2620, 4939), (2882, 4490)]