28998260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 67306680

約数和(自身を除く): 38308420

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 173, 289, 290, 340, 346, 493, 578, 580, 692, 865, 986, 1156, 1445, 1730, 1972, 2465, 2890, 2941, 3460, 4930, 5017, 5780, 5882, 8381, 9860, 10034, 11764, 14705, 16762, 20068, 25085, 29410, 33524, 41905, 49997, 50170, 58820, 83810, 85289, 99994, 100340, 167620, 170578, 199988, 249985, 341156, 426445, 499970, 852890, 999940, 1449913, 1705780, 2899826, 5799652, 7249565, 14499130, 28998260]

約数ペア:

[(1, 28998260), (2, 14499130), (4, 7249565), (5, 5799652), (10, 2899826), (17, 1705780), (20, 1449913), (29, 999940), (34, 852890), (58, 499970), (68, 426445), (85, 341156), (116, 249985), (145, 199988), (170, 170578), (173, 167620), (289, 100340), (290, 99994), (340, 85289), (346, 83810), (493, 58820), (578, 50170), (580, 49997), (692, 41905), (865, 33524), (986, 29410), (1156, 25085), (1445, 20068), (1730, 16762), (1972, 14705), (2465, 11764), (2890, 10034), (2941, 9860), (3460, 8381), (4930, 5882), (5017, 5780)]