86981980

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{8039}}^1$

素因数の和:8589

約数の個数: 24

約数和(自身を含む): 183022560

約数和(自身を除く): 96040580

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 8039, 10820, 16078, 32156, 40195, 80390, 160780, 4349099, 8698198, 17396396, 21745495, 43490990, 86981980]

約数ペア:

[(1, 86981980), (2, 43490990), (4, 21745495), (5, 17396396), (10, 8698198), (20, 4349099), (541, 160780), (1082, 80390), (2164, 40195), (2705, 32156), (5410, 16078), (8039, 10820)]