80019440

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{14929}}^1$

素因数の和:15009

約数の個数: 40

約数和(自身を含む): 188834640

約数和(自身を除く): 108815200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 14929, 29858, 59716, 74645, 119432, 149290, 238864, 298580, 597160, 1000243, 1194320, 2000486, 4000972, 5001215, 8001944, 10002430, 16003888, 20004860, 40009720, 80019440]

約数ペア:

[(1, 80019440), (2, 40009720), (4, 20004860), (5, 16003888), (8, 10002430), (10, 8001944), (16, 5001215), (20, 4000972), (40, 2000486), (67, 1194320), (80, 1000243), (134, 597160), (268, 298580), (335, 238864), (536, 149290), (670, 119432), (1072, 74645), (1340, 59716), (2680, 29858), (5360, 14929)]