20556000

素因数分解:

$2^5\times 3^2\times 5^3\times {\mathrm{571}}^1$

素因数の和:602

約数の個数: 144

約数和(自身を含む): 73081008

約数和(自身を除く): 52525008

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 96, 100, 120, 125, 144, 150, 160, 180, 200, 225, 240, 250, 288, 300, 360, 375, 400, 450, 480, 500, 571, 600, 720, 750, 800, 900, 1000, 1125, 1142, 1200, 1440, 1500, 1713, 1800, 2000, 2250, 2284, 2400, 2855, 3000, 3426, 3600, 4000, 4500, 4568, 5139, 5710, 6000, 6852, 7200, 8565, 9000, 9136, 10278, 11420, 12000, 13704, 14275, 17130, 18000, 18272, 20556, 22840, 25695, 27408, 28550, 34260, 36000, 41112, 42825, 45680, 51390, 54816, 57100, 68520, 71375, 82224, 85650, 91360, 102780, 114200, 128475, 137040, 142750, 164448, 171300, 205560, 214125, 228400, 256950, 274080, 285500, 342600, 411120, 428250, 456800, 513900, 571000, 642375, 685200, 822240, 856500, 1027800, 1142000, 1284750, 1370400, 1713000, 2055600, 2284000, 2569500, 3426000, 4111200, 5139000, 6852000, 10278000, 20556000]

約数ペア:

[(1, 20556000), (2, 10278000), (3, 6852000), (4, 5139000), (5, 4111200), (6, 3426000), (8, 2569500), (9, 2284000), (10, 2055600), (12, 1713000), (15, 1370400), (16, 1284750), (18, 1142000), (20, 1027800), (24, 856500), (25, 822240), (30, 685200), (32, 642375), (36, 571000), (40, 513900), (45, 456800), (48, 428250), (50, 411120), (60, 342600), (72, 285500), (75, 274080), (80, 256950), (90, 228400), (96, 214125), (100, 205560), (120, 171300), (125, 164448), (144, 142750), (150, 137040), (160, 128475), (180, 114200), (200, 102780), (225, 91360), (240, 85650), (250, 82224), (288, 71375), (300, 68520), (360, 57100), (375, 54816), (400, 51390), (450, 45680), (480, 42825), (500, 41112), (571, 36000), (600, 34260), (720, 28550), (750, 27408), (800, 25695), (900, 22840), (1000, 20556), (1125, 18272), (1142, 18000), (1200, 17130), (1440, 14275), (1500, 13704), (1713, 12000), (1800, 11420), (2000, 10278), (2250, 9136), (2284, 9000), (2400, 8565), (2855, 7200), (3000, 6852), (3426, 6000), (3600, 5710), (4000, 5139), (4500, 4568)]