28282140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2213}}^1$

素因数の和:2299

約数の個数: 72

約数和(自身を含む): 87036768

約数和(自身を除く): 58754628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2213, 2556, 3195, 4260, 4426, 6390, 6639, 8852, 11065, 12780, 13278, 19917, 22130, 26556, 33195, 39834, 44260, 66390, 79668, 99585, 132780, 157123, 199170, 314246, 398340, 471369, 628492, 785615, 942738, 1414107, 1571230, 1885476, 2356845, 2828214, 3142460, 4713690, 5656428, 7070535, 9427380, 14141070, 28282140]

約数ペア:

[(1, 28282140), (2, 14141070), (3, 9427380), (4, 7070535), (5, 5656428), (6, 4713690), (9, 3142460), (10, 2828214), (12, 2356845), (15, 1885476), (18, 1571230), (20, 1414107), (30, 942738), (36, 785615), (45, 628492), (60, 471369), (71, 398340), (90, 314246), (142, 199170), (180, 157123), (213, 132780), (284, 99585), (355, 79668), (426, 66390), (639, 44260), (710, 39834), (852, 33195), (1065, 26556), (1278, 22130), (1420, 19917), (2130, 13278), (2213, 12780), (2556, 11065), (3195, 8852), (4260, 6639), (4426, 6390)]