81518724

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{11981}}^1$

素因数の和:12007

約数の個数: 72

約数和(自身を含む): 244241088

約数和(自身を除く): 162722364

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3402, 6804, 11981, 23962, 35943, 47924, 71886, 83867, 107829, 143772, 167734, 215658, 251601, 323487, 335468, 431316, 503202, 646974, 754803, 970461, 1006404, 1293948, 1509606, 1940922, 2264409, 2911383, 3019212, 3881844, 4528818, 5822766, 6793227, 9057636, 11645532, 13586454, 20379681, 27172908, 40759362, 81518724]

約数ペア:

[(1, 81518724), (2, 40759362), (3, 27172908), (4, 20379681), (6, 13586454), (7, 11645532), (9, 9057636), (12, 6793227), (14, 5822766), (18, 4528818), (21, 3881844), (27, 3019212), (28, 2911383), (36, 2264409), (42, 1940922), (54, 1509606), (63, 1293948), (81, 1006404), (84, 970461), (108, 754803), (126, 646974), (162, 503202), (189, 431316), (243, 335468), (252, 323487), (324, 251601), (378, 215658), (486, 167734), (567, 143772), (756, 107829), (972, 83867), (1134, 71886), (1701, 47924), (2268, 35943), (3402, 23962), (6804, 11981)]