71730440

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20149}}^1$

素因数の和:20249

約数の個数: 32

約数和(自身を含む): 163215000

約数和(自身を除く): 91484560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 20149, 40298, 80596, 100745, 161192, 201490, 402980, 805960, 1793261, 3586522, 7173044, 8966305, 14346088, 17932610, 35865220, 71730440]

約数ペア:

[(1, 71730440), (2, 35865220), (4, 17932610), (5, 14346088), (8, 8966305), (10, 7173044), (20, 3586522), (40, 1793261), (89, 805960), (178, 402980), (356, 201490), (445, 161192), (712, 100745), (890, 80596), (1780, 40298), (3560, 20149)]