19911450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10211}}^1$

素因数の和:10239

約数の個数: 48

約数和(自身を含む): 53184096

約数和(自身を除く): 33272646

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10211, 20422, 30633, 51055, 61266, 102110, 132743, 153165, 255275, 265486, 306330, 398229, 510550, 663715, 765825, 796458, 1327430, 1531650, 1991145, 3318575, 3982290, 6637150, 9955725, 19911450]

約数ペア:

[(1, 19911450), (2, 9955725), (3, 6637150), (5, 3982290), (6, 3318575), (10, 1991145), (13, 1531650), (15, 1327430), (25, 796458), (26, 765825), (30, 663715), (39, 510550), (50, 398229), (65, 306330), (75, 265486), (78, 255275), (130, 153165), (150, 132743), (195, 102110), (325, 61266), (390, 51055), (650, 30633), (975, 20422), (1950, 10211)]