72128980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6691}}^1$

素因数の和:6725

約数の個数: 72

約数和(自身を含む): 192247776

約数和(自身を除く): 120118796

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 6691, 10780, 13382, 26764, 33455, 46837, 66910, 73601, 93674, 133820, 147202, 187348, 234185, 294404, 327859, 368005, 468370, 515207, 655718, 736010, 936740, 1030414, 1311436, 1472020, 1639295, 2060828, 2576035, 3278590, 3606449, 5152070, 6557180, 7212898, 10304140, 14425796, 18032245, 36064490, 72128980]

約数ペア:

[(1, 72128980), (2, 36064490), (4, 18032245), (5, 14425796), (7, 10304140), (10, 7212898), (11, 6557180), (14, 5152070), (20, 3606449), (22, 3278590), (28, 2576035), (35, 2060828), (44, 1639295), (49, 1472020), (55, 1311436), (70, 1030414), (77, 936740), (98, 736010), (110, 655718), (140, 515207), (154, 468370), (196, 368005), (220, 327859), (245, 294404), (308, 234185), (385, 187348), (490, 147202), (539, 133820), (770, 93674), (980, 73601), (1078, 66910), (1540, 46837), (2156, 33455), (2695, 26764), (5390, 13382), (6691, 10780)]