15500720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2729}}^1$

素因数の和:2813

約数の個数: 40

約数和(自身を含む): 36560160

約数和(自身を除く): 21059440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2729, 2840, 5458, 5680, 10916, 13645, 21832, 27290, 43664, 54580, 109160, 193759, 218320, 387518, 775036, 968795, 1550072, 1937590, 3100144, 3875180, 7750360, 15500720]

約数ペア:

[(1, 15500720), (2, 7750360), (4, 3875180), (5, 3100144), (8, 1937590), (10, 1550072), (16, 968795), (20, 775036), (40, 387518), (71, 218320), (80, 193759), (142, 109160), (284, 54580), (355, 43664), (568, 27290), (710, 21832), (1136, 13645), (1420, 10916), (2729, 5680), (2840, 5458)]