31284890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1167

約数の個数: 64

約数和(自身を含む): 71608320

約数和(自身を除く): 40323430

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 62, 65, 70, 91, 130, 155, 182, 217, 310, 403, 434, 455, 806, 910, 1085, 1109, 2015, 2170, 2218, 2821, 4030, 5545, 5642, 7763, 11090, 14105, 14417, 15526, 28210, 28834, 34379, 38815, 68758, 72085, 77630, 100919, 144170, 171895, 201838, 240653, 343790, 446927, 481306, 504595, 893854, 1009190, 1203265, 2234635, 2406530, 3128489, 4469270, 6256978, 15642445, 31284890]

約数ペア:

[(1, 31284890), (2, 15642445), (5, 6256978), (7, 4469270), (10, 3128489), (13, 2406530), (14, 2234635), (26, 1203265), (31, 1009190), (35, 893854), (62, 504595), (65, 481306), (70, 446927), (91, 343790), (130, 240653), (155, 201838), (182, 171895), (217, 144170), (310, 100919), (403, 77630), (434, 72085), (455, 68758), (806, 38815), (910, 34379), (1085, 28834), (1109, 28210), (2015, 15526), (2170, 14417), (2218, 14105), (2821, 11090), (4030, 7763), (5545, 5642)]