19168740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{977}}^1$

素因数の和:1101

約数の個数: 72

約数和(自身を含む): 58738680

約数和(自身を除く): 39569940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 977, 981, 1090, 1308, 1635, 1954, 1962, 2180, 2931, 3270, 3908, 3924, 4885, 4905, 5862, 6540, 8793, 9770, 9810, 11724, 14655, 17586, 19540, 19620, 29310, 35172, 43965, 58620, 87930, 106493, 175860, 212986, 319479, 425972, 532465, 638958, 958437, 1064930, 1277916, 1597395, 1916874, 2129860, 3194790, 3833748, 4792185, 6389580, 9584370, 19168740]

約数ペア:

[(1, 19168740), (2, 9584370), (3, 6389580), (4, 4792185), (5, 3833748), (6, 3194790), (9, 2129860), (10, 1916874), (12, 1597395), (15, 1277916), (18, 1064930), (20, 958437), (30, 638958), (36, 532465), (45, 425972), (60, 319479), (90, 212986), (109, 175860), (180, 106493), (218, 87930), (327, 58620), (436, 43965), (545, 35172), (654, 29310), (977, 19620), (981, 19540), (1090, 17586), (1308, 14655), (1635, 11724), (1954, 9810), (1962, 9770), (2180, 8793), (2931, 6540), (3270, 5862), (3908, 4905), (3924, 4885)]