28101684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 74676000

約数和(自身を除く): 46574316

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 361, 494, 499, 722, 741, 988, 998, 1083, 1444, 1482, 1497, 1996, 2166, 2964, 2994, 4332, 4693, 5988, 6487, 9386, 9481, 12974, 14079, 18772, 18962, 19461, 25948, 28158, 28443, 37924, 38922, 56316, 56886, 77844, 113772, 123253, 180139, 246506, 360278, 369759, 493012, 540417, 720556, 739518, 1080834, 1479036, 2161668, 2341807, 4683614, 7025421, 9367228, 14050842, 28101684]

約数ペア:

[(1, 28101684), (2, 14050842), (3, 9367228), (4, 7025421), (6, 4683614), (12, 2341807), (13, 2161668), (19, 1479036), (26, 1080834), (38, 739518), (39, 720556), (52, 540417), (57, 493012), (76, 369759), (78, 360278), (114, 246506), (156, 180139), (228, 123253), (247, 113772), (361, 77844), (494, 56886), (499, 56316), (722, 38922), (741, 37924), (988, 28443), (998, 28158), (1083, 25948), (1444, 19461), (1482, 18962), (1497, 18772), (1996, 14079), (2166, 12974), (2964, 9481), (2994, 9386), (4332, 6487), (4693, 5988)]