21261000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:416

約数の個数: 128

約数和(自身を含む): 70012800

約数和(自身を除く): 48751800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 25, 30, 38, 40, 50, 57, 60, 75, 76, 95, 100, 114, 120, 125, 150, 152, 190, 200, 228, 250, 285, 300, 373, 375, 380, 456, 475, 500, 570, 600, 746, 750, 760, 950, 1000, 1119, 1140, 1425, 1492, 1500, 1865, 1900, 2238, 2280, 2375, 2850, 2984, 3000, 3730, 3800, 4476, 4750, 5595, 5700, 7087, 7125, 7460, 8952, 9325, 9500, 11190, 11400, 14174, 14250, 14920, 18650, 19000, 21261, 22380, 27975, 28348, 28500, 35435, 37300, 42522, 44760, 46625, 55950, 56696, 57000, 70870, 74600, 85044, 93250, 106305, 111900, 139875, 141740, 170088, 177175, 186500, 212610, 223800, 279750, 283480, 354350, 373000, 425220, 531525, 559500, 708700, 850440, 885875, 1063050, 1119000, 1417400, 1771750, 2126100, 2657625, 3543500, 4252200, 5315250, 7087000, 10630500, 21261000]

約数ペア:

[(1, 21261000), (2, 10630500), (3, 7087000), (4, 5315250), (5, 4252200), (6, 3543500), (8, 2657625), (10, 2126100), (12, 1771750), (15, 1417400), (19, 1119000), (20, 1063050), (24, 885875), (25, 850440), (30, 708700), (38, 559500), (40, 531525), (50, 425220), (57, 373000), (60, 354350), (75, 283480), (76, 279750), (95, 223800), (100, 212610), (114, 186500), (120, 177175), (125, 170088), (150, 141740), (152, 139875), (190, 111900), (200, 106305), (228, 93250), (250, 85044), (285, 74600), (300, 70870), (373, 57000), (375, 56696), (380, 55950), (456, 46625), (475, 44760), (500, 42522), (570, 37300), (600, 35435), (746, 28500), (750, 28348), (760, 27975), (950, 22380), (1000, 21261), (1119, 19000), (1140, 18650), (1425, 14920), (1492, 14250), (1500, 14174), (1865, 11400), (1900, 11190), (2238, 9500), (2280, 9325), (2375, 8952), (2850, 7460), (2984, 7125), (3000, 7087), (3730, 5700), (3800, 5595), (4476, 4750)]