123519994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 221671296

約数和(自身を除く): 98151302

約数列:

[1, 2, 13, 17, 26, 34, 43, 67, 86, 97, 134, 194, 221, 442, 559, 731, 871, 1118, 1139, 1261, 1462, 1649, 1742, 2278, 2522, 2881, 3298, 4171, 5762, 6499, 8342, 9503, 12998, 14807, 19006, 21437, 29614, 37453, 42874, 48977, 54223, 70907, 74906, 84487, 97954, 108446, 110483, 141814, 168974, 220966, 279457, 558914, 636701, 921791, 1273402, 1436279, 1843582, 2872558, 3632941, 4750769, 7265882, 9501538, 61759997, 123519994]

約数ペア:

[(1, 123519994), (2, 61759997), (13, 9501538), (17, 7265882), (26, 4750769), (34, 3632941), (43, 2872558), (67, 1843582), (86, 1436279), (97, 1273402), (134, 921791), (194, 636701), (221, 558914), (442, 279457), (559, 220966), (731, 168974), (871, 141814), (1118, 110483), (1139, 108446), (1261, 97954), (1462, 84487), (1649, 74906), (1742, 70907), (2278, 54223), (2522, 48977), (2881, 42874), (3298, 37453), (4171, 29614), (5762, 21437), (6499, 19006), (8342, 14807), (9503, 12998)]