261243220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{9377}}^1$

素因数の和:9592

約数の個数: 48

約数和(自身を含む): 630201600

約数和(自身を除く): 368958380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 9377, 13930, 18754, 27860, 37508, 46885, 65639, 93770, 131278, 187540, 262556, 328195, 656390, 1312780, 1866023, 3732046, 7464092, 9330115, 13062161, 18660230, 26124322, 37320460, 52248644, 65310805, 130621610, 261243220]

約数ペア:

[(1, 261243220), (2, 130621610), (4, 65310805), (5, 52248644), (7, 37320460), (10, 26124322), (14, 18660230), (20, 13062161), (28, 9330115), (35, 7464092), (70, 3732046), (140, 1866023), (199, 1312780), (398, 656390), (796, 328195), (995, 262556), (1393, 187540), (1990, 131278), (2786, 93770), (3980, 65639), (5572, 46885), (6965, 37508), (9377, 27860), (13930, 18754)]