81013120

素因数分解:

$2^7\times 5^1\times {\mathrm{126583}}^1$

素因数の和:126602

約数の個数: 32

約数和(自身を含む): 193673520

約数和(自身を除く): 112660400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 126583, 253166, 506332, 632915, 1012664, 1265830, 2025328, 2531660, 4050656, 5063320, 8101312, 10126640, 16202624, 20253280, 40506560, 81013120]

約数ペア:

[(1, 81013120), (2, 40506560), (4, 20253280), (5, 16202624), (8, 10126640), (10, 8101312), (16, 5063320), (20, 4050656), (32, 2531660), (40, 2025328), (64, 1265830), (80, 1012664), (128, 632915), (160, 506332), (320, 253166), (640, 126583)]