20895000

素因数分解:

$2^3\times 3^1\times 5^4\times 7^1\times {\mathrm{199}}^1$

素因数の和:235

約数の個数: 160

約数和(自身を含む): 74976000

約数和(自身を除く): 54081000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 199, 200, 210, 250, 280, 300, 350, 375, 398, 420, 500, 525, 597, 600, 625, 700, 750, 796, 840, 875, 995, 1000, 1050, 1194, 1250, 1393, 1400, 1500, 1592, 1750, 1875, 1990, 2100, 2388, 2500, 2625, 2786, 2985, 3000, 3500, 3750, 3980, 4179, 4200, 4375, 4776, 4975, 5000, 5250, 5572, 5970, 6965, 7000, 7500, 7960, 8358, 8750, 9950, 10500, 11144, 11940, 13125, 13930, 14925, 15000, 16716, 17500, 19900, 20895, 21000, 23880, 24875, 26250, 27860, 29850, 33432, 34825, 35000, 39800, 41790, 49750, 52500, 55720, 59700, 69650, 74625, 83580, 99500, 104475, 105000, 119400, 124375, 139300, 149250, 167160, 174125, 199000, 208950, 248750, 278600, 298500, 348250, 373125, 417900, 497500, 522375, 597000, 696500, 746250, 835800, 870625, 995000, 1044750, 1393000, 1492500, 1741250, 2089500, 2611875, 2985000, 3482500, 4179000, 5223750, 6965000, 10447500, 20895000]

約数ペア:

[(1, 20895000), (2, 10447500), (3, 6965000), (4, 5223750), (5, 4179000), (6, 3482500), (7, 2985000), (8, 2611875), (10, 2089500), (12, 1741250), (14, 1492500), (15, 1393000), (20, 1044750), (21, 995000), (24, 870625), (25, 835800), (28, 746250), (30, 696500), (35, 597000), (40, 522375), (42, 497500), (50, 417900), (56, 373125), (60, 348250), (70, 298500), (75, 278600), (84, 248750), (100, 208950), (105, 199000), (120, 174125), (125, 167160), (140, 149250), (150, 139300), (168, 124375), (175, 119400), (199, 105000), (200, 104475), (210, 99500), (250, 83580), (280, 74625), (300, 69650), (350, 59700), (375, 55720), (398, 52500), (420, 49750), (500, 41790), (525, 39800), (597, 35000), (600, 34825), (625, 33432), (700, 29850), (750, 27860), (796, 26250), (840, 24875), (875, 23880), (995, 21000), (1000, 20895), (1050, 19900), (1194, 17500), (1250, 16716), (1393, 15000), (1400, 14925), (1500, 13930), (1592, 13125), (1750, 11940), (1875, 11144), (1990, 10500), (2100, 9950), (2388, 8750), (2500, 8358), (2625, 7960), (2786, 7500), (2985, 7000), (3000, 6965), (3500, 5970), (3750, 5572), (3980, 5250), (4179, 5000), (4200, 4975), (4375, 4776)]