19714280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5081}}^1$

素因数の和:5189

約数の個数: 32

約数和(自身を含む): 44823240

約数和(自身を除く): 25108960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 5081, 10162, 20324, 25405, 40648, 50810, 101620, 203240, 492857, 985714, 1971428, 2464285, 3942856, 4928570, 9857140, 19714280]

約数ペア:

[(1, 19714280), (2, 9857140), (4, 4928570), (5, 3942856), (8, 2464285), (10, 1971428), (20, 985714), (40, 492857), (97, 203240), (194, 101620), (388, 50810), (485, 40648), (776, 25405), (970, 20324), (1940, 10162), (3880, 5081)]