208257920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25031}}^1$

素因数の和:25063

約数の個数: 64

約数和(自身を含む): 536185440

約数和(自身を除く): 327927520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 25031, 50062, 100124, 125155, 200248, 250310, 325403, 400496, 500620, 650806, 800992, 1001240, 1301612, 1601984, 1627015, 2002480, 2603224, 3203968, 3254030, 4004960, 5206448, 6508060, 8009920, 10412896, 13016120, 16019840, 20825792, 26032240, 41651584, 52064480, 104128960, 208257920]

約数ペア:

[(1, 208257920), (2, 104128960), (4, 52064480), (5, 41651584), (8, 26032240), (10, 20825792), (13, 16019840), (16, 13016120), (20, 10412896), (26, 8009920), (32, 6508060), (40, 5206448), (52, 4004960), (64, 3254030), (65, 3203968), (80, 2603224), (104, 2002480), (128, 1627015), (130, 1601984), (160, 1301612), (208, 1001240), (260, 800992), (320, 650806), (416, 500620), (520, 400496), (640, 325403), (832, 250310), (1040, 200248), (1664, 125155), (2080, 100124), (4160, 50062), (8320, 25031)]