25978720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9551}}^1$

素因数の和:9583

約数の個数: 48

約数和(自身を含む): 64991808

約数和(自身を除く): 39013088

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 9551, 19102, 38204, 47755, 76408, 95510, 152816, 162367, 191020, 305632, 324734, 382040, 649468, 764080, 811835, 1298936, 1528160, 1623670, 2597872, 3247340, 5195744, 6494680, 12989360, 25978720]

約数ペア:

[(1, 25978720), (2, 12989360), (4, 6494680), (5, 5195744), (8, 3247340), (10, 2597872), (16, 1623670), (17, 1528160), (20, 1298936), (32, 811835), (34, 764080), (40, 649468), (68, 382040), (80, 324734), (85, 305632), (136, 191020), (160, 162367), (170, 152816), (272, 95510), (340, 76408), (544, 47755), (680, 38204), (1360, 19102), (2720, 9551)]