81190000

素因数分解:

$2^4\times 5^4\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:404

約数の個数: 100

約数和(自身を含む): 205696656

約数和(自身を除く): 124506656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 125, 184, 200, 230, 250, 353, 368, 400, 460, 500, 575, 625, 706, 920, 1000, 1150, 1250, 1412, 1765, 1840, 2000, 2300, 2500, 2824, 2875, 3530, 4600, 5000, 5648, 5750, 7060, 8119, 8825, 9200, 10000, 11500, 14120, 14375, 16238, 17650, 23000, 28240, 28750, 32476, 35300, 40595, 44125, 46000, 57500, 64952, 70600, 81190, 88250, 115000, 129904, 141200, 162380, 176500, 202975, 220625, 230000, 324760, 353000, 405950, 441250, 649520, 706000, 811900, 882500, 1014875, 1623800, 1765000, 2029750, 3247600, 3530000, 4059500, 5074375, 8119000, 10148750, 16238000, 20297500, 40595000, 81190000]

約数ペア:

[(1, 81190000), (2, 40595000), (4, 20297500), (5, 16238000), (8, 10148750), (10, 8119000), (16, 5074375), (20, 4059500), (23, 3530000), (25, 3247600), (40, 2029750), (46, 1765000), (50, 1623800), (80, 1014875), (92, 882500), (100, 811900), (115, 706000), (125, 649520), (184, 441250), (200, 405950), (230, 353000), (250, 324760), (353, 230000), (368, 220625), (400, 202975), (460, 176500), (500, 162380), (575, 141200), (625, 129904), (706, 115000), (920, 88250), (1000, 81190), (1150, 70600), (1250, 64952), (1412, 57500), (1765, 46000), (1840, 44125), (2000, 40595), (2300, 35300), (2500, 32476), (2824, 28750), (2875, 28240), (3530, 23000), (4600, 17650), (5000, 16238), (5648, 14375), (5750, 14120), (7060, 11500), (8119, 10000), (8825, 9200)]