85767280

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{5081}}^1$

素因数の和:5305

約数の個数: 40

約数和(自身を含む): 200393424

約数和(自身を除く): 114626144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 5081, 8440, 10162, 16880, 20324, 25405, 40648, 50810, 81296, 101620, 203240, 406480, 1072091, 2144182, 4288364, 5360455, 8576728, 10720910, 17153456, 21441820, 42883640, 85767280]

約数ペア:

[(1, 85767280), (2, 42883640), (4, 21441820), (5, 17153456), (8, 10720910), (10, 8576728), (16, 5360455), (20, 4288364), (40, 2144182), (80, 1072091), (211, 406480), (422, 203240), (844, 101620), (1055, 81296), (1688, 50810), (2110, 40648), (3376, 25405), (4220, 20324), (5081, 16880), (8440, 10162)]