388803420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1$

素因数の和:512

約数の個数: 144

約数和(自身を含む): 1217728512

約数和(自身を除く): 828925092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 191, 215, 258, 263, 382, 387, 430, 516, 526, 573, 645, 764, 774, 789, 860, 955, 1052, 1146, 1290, 1315, 1548, 1578, 1719, 1910, 1935, 2292, 2367, 2580, 2630, 2865, 3156, 3438, 3820, 3870, 3945, 4734, 5260, 5730, 6876, 7740, 7890, 8213, 8595, 9468, 11309, 11460, 11835, 15780, 16426, 17190, 22618, 23670, 24639, 32852, 33927, 34380, 41065, 45236, 47340, 49278, 50233, 56545, 67854, 73917, 82130, 98556, 100466, 101781, 113090, 123195, 135708, 147834, 150699, 164260, 169635, 200932, 203562, 226180, 246390, 251165, 295668, 301398, 339270, 369585, 407124, 452097, 492780, 502330, 508905, 602796, 678540, 739170, 753495, 904194, 1004660, 1017810, 1478340, 1506990, 1808388, 2035620, 2160019, 2260485, 3013980, 4320038, 4520970, 6480057, 8640076, 9041940, 10800095, 12960114, 19440171, 21600190, 25920228, 32400285, 38880342, 43200380, 64800570, 77760684, 97200855, 129601140, 194401710, 388803420]

約数ペア:

[(1, 388803420), (2, 194401710), (3, 129601140), (4, 97200855), (5, 77760684), (6, 64800570), (9, 43200380), (10, 38880342), (12, 32400285), (15, 25920228), (18, 21600190), (20, 19440171), (30, 12960114), (36, 10800095), (43, 9041940), (45, 8640076), (60, 6480057), (86, 4520970), (90, 4320038), (129, 3013980), (172, 2260485), (180, 2160019), (191, 2035620), (215, 1808388), (258, 1506990), (263, 1478340), (382, 1017810), (387, 1004660), (430, 904194), (516, 753495), (526, 739170), (573, 678540), (645, 602796), (764, 508905), (774, 502330), (789, 492780), (860, 452097), (955, 407124), (1052, 369585), (1146, 339270), (1290, 301398), (1315, 295668), (1548, 251165), (1578, 246390), (1719, 226180), (1910, 203562), (1935, 200932), (2292, 169635), (2367, 164260), (2580, 150699), (2630, 147834), (2865, 135708), (3156, 123195), (3438, 113090), (3820, 101781), (3870, 100466), (3945, 98556), (4734, 82130), (5260, 73917), (5730, 67854), (6876, 56545), (7740, 50233), (7890, 49278), (8213, 47340), (8595, 45236), (9468, 41065), (11309, 34380), (11460, 33927), (11835, 32852), (15780, 24639), (16426, 23670), (17190, 22618)]