259338790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^4\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 40

約数和(自身を含む): 495219600

約数和(自身を除く): 235880810

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 199, 361, 398, 722, 995, 1805, 1990, 3610, 3781, 6859, 7562, 13718, 18905, 34295, 37810, 68590, 71839, 130321, 143678, 260642, 359195, 651605, 718390, 1303210, 1364941, 2729882, 6824705, 13649410, 25933879, 51867758, 129669395, 259338790]

約数ペア:

[(1, 259338790), (2, 129669395), (5, 51867758), (10, 25933879), (19, 13649410), (38, 6824705), (95, 2729882), (190, 1364941), (199, 1303210), (361, 718390), (398, 651605), (722, 359195), (995, 260642), (1805, 143678), (1990, 130321), (3610, 71839), (3781, 68590), (6859, 37810), (7562, 34295), (13718, 18905)]