13115120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2309}}^1$

素因数の和:2393

約数の個数: 40

約数和(自身を含む): 30935520

約数和(自身を除く): 17820400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2309, 2840, 4618, 5680, 9236, 11545, 18472, 23090, 36944, 46180, 92360, 163939, 184720, 327878, 655756, 819695, 1311512, 1639390, 2623024, 3278780, 6557560, 13115120]

約数ペア:

[(1, 13115120), (2, 6557560), (4, 3278780), (5, 2623024), (8, 1639390), (10, 1311512), (16, 819695), (20, 655756), (40, 327878), (71, 184720), (80, 163939), (142, 92360), (284, 46180), (355, 36944), (568, 23090), (710, 18472), (1136, 11545), (1420, 9236), (2309, 5680), (2840, 4618)]