320091720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{205187}}^1$

素因数の和:205214

約数の個数: 64

約数和(自身を含む): 1034147520

約数和(自身を除く): 714055800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 205187, 410374, 615561, 820748, 1025935, 1231122, 1641496, 2051870, 2462244, 2667431, 3077805, 4103740, 4924488, 5334862, 6155610, 8002293, 8207480, 10669724, 12311220, 13337155, 16004586, 21339448, 24622440, 26674310, 32009172, 40011465, 53348620, 64018344, 80022930, 106697240, 160045860, 320091720]

約数ペア:

[(1, 320091720), (2, 160045860), (3, 106697240), (4, 80022930), (5, 64018344), (6, 53348620), (8, 40011465), (10, 32009172), (12, 26674310), (13, 24622440), (15, 21339448), (20, 16004586), (24, 13337155), (26, 12311220), (30, 10669724), (39, 8207480), (40, 8002293), (52, 6155610), (60, 5334862), (65, 4924488), (78, 4103740), (104, 3077805), (120, 2667431), (130, 2462244), (156, 2051870), (195, 1641496), (260, 1231122), (312, 1025935), (390, 820748), (520, 615561), (780, 410374), (1560, 205187)]