181551260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:347

約数の個数: 96

約数和(自身を含む): 431101440

約数和(自身を除く): 249550180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 71, 110, 118, 142, 197, 220, 236, 284, 295, 355, 394, 590, 649, 710, 781, 788, 985, 1180, 1298, 1420, 1562, 1970, 2167, 2596, 3124, 3245, 3905, 3940, 4189, 4334, 6490, 7810, 8378, 8668, 10835, 11623, 12980, 13987, 15620, 16756, 20945, 21670, 23246, 27974, 41890, 43340, 46079, 46492, 55948, 58115, 69935, 83780, 92158, 116230, 127853, 139870, 153857, 184316, 230395, 232460, 255706, 279740, 307714, 460790, 511412, 615428, 639265, 769285, 825233, 921580, 1278530, 1538570, 1650466, 2557060, 3077140, 3300932, 4126165, 8252330, 9077563, 16504660, 18155126, 36310252, 45387815, 90775630, 181551260]

約数ペア:

[(1, 181551260), (2, 90775630), (4, 45387815), (5, 36310252), (10, 18155126), (11, 16504660), (20, 9077563), (22, 8252330), (44, 4126165), (55, 3300932), (59, 3077140), (71, 2557060), (110, 1650466), (118, 1538570), (142, 1278530), (197, 921580), (220, 825233), (236, 769285), (284, 639265), (295, 615428), (355, 511412), (394, 460790), (590, 307714), (649, 279740), (710, 255706), (781, 232460), (788, 230395), (985, 184316), (1180, 153857), (1298, 139870), (1420, 127853), (1562, 116230), (1970, 92158), (2167, 83780), (2596, 69935), (3124, 58115), (3245, 55948), (3905, 46492), (3940, 46079), (4189, 43340), (4334, 41890), (6490, 27974), (7810, 23246), (8378, 21670), (8668, 20945), (10835, 16756), (11623, 15620), (12980, 13987)]