20538012

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{431}}^1$

素因数の和:487

約数の個数: 72

約数和(自身を含む): 55302912

約数和(自身を除く): 34764900

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 57, 66, 76, 114, 132, 209, 228, 361, 418, 431, 627, 722, 836, 862, 1083, 1254, 1293, 1444, 1724, 2166, 2508, 2586, 3971, 4332, 4741, 5172, 7942, 8189, 9482, 11913, 14223, 15884, 16378, 18964, 23826, 24567, 28446, 32756, 47652, 49134, 56892, 90079, 98268, 155591, 180158, 270237, 311182, 360316, 466773, 540474, 622364, 933546, 1080948, 1711501, 1867092, 3423002, 5134503, 6846004, 10269006, 20538012]

約数ペア:

[(1, 20538012), (2, 10269006), (3, 6846004), (4, 5134503), (6, 3423002), (11, 1867092), (12, 1711501), (19, 1080948), (22, 933546), (33, 622364), (38, 540474), (44, 466773), (57, 360316), (66, 311182), (76, 270237), (114, 180158), (132, 155591), (209, 98268), (228, 90079), (361, 56892), (418, 49134), (431, 47652), (627, 32756), (722, 28446), (836, 24567), (862, 23826), (1083, 18964), (1254, 16378), (1293, 15884), (1444, 14223), (1724, 11913), (2166, 9482), (2508, 8189), (2586, 7942), (3971, 5172), (4332, 4741)]