19864160

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 50893920

約数和(自身を除く): 31029760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 67, 68, 80, 85, 109, 134, 136, 160, 170, 218, 268, 272, 335, 340, 436, 536, 544, 545, 670, 680, 872, 1072, 1090, 1139, 1340, 1360, 1744, 1853, 2144, 2180, 2278, 2680, 2720, 3488, 3706, 4360, 4556, 5360, 5695, 7303, 7412, 8720, 9112, 9265, 10720, 11390, 14606, 14824, 17440, 18224, 18530, 22780, 29212, 29648, 36448, 36515, 37060, 45560, 58424, 59296, 73030, 74120, 91120, 116848, 124151, 146060, 148240, 182240, 233696, 248302, 292120, 296480, 496604, 584240, 620755, 993208, 1168480, 1241510, 1986416, 2483020, 3972832, 4966040, 9932080, 19864160]

約数ペア:

[(1, 19864160), (2, 9932080), (4, 4966040), (5, 3972832), (8, 2483020), (10, 1986416), (16, 1241510), (17, 1168480), (20, 993208), (32, 620755), (34, 584240), (40, 496604), (67, 296480), (68, 292120), (80, 248302), (85, 233696), (109, 182240), (134, 148240), (136, 146060), (160, 124151), (170, 116848), (218, 91120), (268, 74120), (272, 73030), (335, 59296), (340, 58424), (436, 45560), (536, 37060), (544, 36515), (545, 36448), (670, 29648), (680, 29212), (872, 22780), (1072, 18530), (1090, 18224), (1139, 17440), (1340, 14824), (1360, 14606), (1744, 11390), (1853, 10720), (2144, 9265), (2180, 9112), (2278, 8720), (2680, 7412), (2720, 7303), (3488, 5695), (3706, 5360), (4360, 4556)]