666426448

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{3391}}^1$

素因数の和:3643

約数の個数: 40

約数和(自身を含む): 1317344256

約数和(自身を除く): 650917808

約数列:

[1, 2, 4, 8, 16, 71, 142, 173, 284, 346, 568, 692, 1136, 1384, 2768, 3391, 6782, 12283, 13564, 24566, 27128, 49132, 54256, 98264, 196528, 240761, 481522, 586643, 963044, 1173286, 1926088, 2346572, 3852176, 4693144, 9386288, 41651653, 83303306, 166606612, 333213224, 666426448]

約数ペア:

[(1, 666426448), (2, 333213224), (4, 166606612), (8, 83303306), (16, 41651653), (71, 9386288), (142, 4693144), (173, 3852176), (284, 2346572), (346, 1926088), (568, 1173286), (692, 963044), (1136, 586643), (1384, 481522), (2768, 240761), (3391, 196528), (6782, 98264), (12283, 54256), (13564, 49132), (24566, 27128)]