31881420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4787}}^1$

素因数の和:4839

約数の個数: 72

約数和(自身を含む): 99341424

約数和(自身を除く): 67460004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 4787, 6660, 9574, 14361, 19148, 23935, 28722, 43083, 47870, 57444, 71805, 86166, 95740, 143610, 172332, 177119, 215415, 287220, 354238, 430830, 531357, 708476, 861660, 885595, 1062714, 1594071, 1771190, 2125428, 2656785, 3188142, 3542380, 5313570, 6376284, 7970355, 10627140, 15940710, 31881420]

約数ペア:

[(1, 31881420), (2, 15940710), (3, 10627140), (4, 7970355), (5, 6376284), (6, 5313570), (9, 3542380), (10, 3188142), (12, 2656785), (15, 2125428), (18, 1771190), (20, 1594071), (30, 1062714), (36, 885595), (37, 861660), (45, 708476), (60, 531357), (74, 430830), (90, 354238), (111, 287220), (148, 215415), (180, 177119), (185, 172332), (222, 143610), (333, 95740), (370, 86166), (444, 71805), (555, 57444), (666, 47870), (740, 43083), (1110, 28722), (1332, 23935), (1665, 19148), (2220, 14361), (3330, 9574), (4787, 6660)]