1263220000

素因数分解:

$2^5\times 5^4\times 7^2\times {\mathrm{1289}}^1$

素因数の和:1333

約数の個数: 180

約数和(自身を含む): 3617896590

約数和(自身を除く): 2354676590

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 125, 140, 160, 175, 196, 200, 224, 245, 250, 280, 350, 392, 400, 490, 500, 560, 625, 700, 784, 800, 875, 980, 1000, 1120, 1225, 1250, 1289, 1400, 1568, 1750, 1960, 2000, 2450, 2500, 2578, 2800, 3500, 3920, 4000, 4375, 4900, 5000, 5156, 5600, 6125, 6445, 7000, 7840, 8750, 9023, 9800, 10000, 10312, 12250, 12890, 14000, 17500, 18046, 19600, 20000, 20624, 24500, 25780, 28000, 30625, 32225, 35000, 36092, 39200, 41248, 45115, 49000, 51560, 61250, 63161, 64450, 70000, 72184, 90230, 98000, 103120, 122500, 126322, 128900, 140000, 144368, 161125, 180460, 196000, 206240, 225575, 245000, 252644, 257800, 288736, 315805, 322250, 360920, 451150, 490000, 505288, 515600, 631610, 644500, 721840, 805625, 902300, 980000, 1010576, 1031200, 1127875, 1263220, 1289000, 1443680, 1579025, 1611250, 1804600, 2021152, 2255750, 2526440, 2578000, 3158050, 3222500, 3609200, 4511500, 5052880, 5156000, 5639375, 6316100, 6445000, 7218400, 7895125, 9023000, 10105760, 11278750, 12632200, 12890000, 15790250, 18046000, 22557500, 25264400, 25780000, 31580500, 36092000, 39475625, 45115000, 50528800, 63161000, 78951250, 90230000, 126322000, 157902500, 180460000, 252644000, 315805000, 631610000, 1263220000]

約数ペア:

[(1, 1263220000), (2, 631610000), (4, 315805000), (5, 252644000), (7, 180460000), (8, 157902500), (10, 126322000), (14, 90230000), (16, 78951250), (20, 63161000), (25, 50528800), (28, 45115000), (32, 39475625), (35, 36092000), (40, 31580500), (49, 25780000), (50, 25264400), (56, 22557500), (70, 18046000), (80, 15790250), (98, 12890000), (100, 12632200), (112, 11278750), (125, 10105760), (140, 9023000), (160, 7895125), (175, 7218400), (196, 6445000), (200, 6316100), (224, 5639375), (245, 5156000), (250, 5052880), (280, 4511500), (350, 3609200), (392, 3222500), (400, 3158050), (490, 2578000), (500, 2526440), (560, 2255750), (625, 2021152), (700, 1804600), (784, 1611250), (800, 1579025), (875, 1443680), (980, 1289000), (1000, 1263220), (1120, 1127875), (1225, 1031200), (1250, 1010576), (1289, 980000), (1400, 902300), (1568, 805625), (1750, 721840), (1960, 644500), (2000, 631610), (2450, 515600), (2500, 505288), (2578, 490000), (2800, 451150), (3500, 360920), (3920, 322250), (4000, 315805), (4375, 288736), (4900, 257800), (5000, 252644), (5156, 245000), (5600, 225575), (6125, 206240), (6445, 196000), (7000, 180460), (7840, 161125), (8750, 144368), (9023, 140000), (9800, 128900), (10000, 126322), (10312, 122500), (12250, 103120), (12890, 98000), (14000, 90230), (17500, 72184), (18046, 70000), (19600, 64450), (20000, 63161), (20624, 61250), (24500, 51560), (25780, 49000), (28000, 45115), (30625, 41248), (32225, 39200), (35000, 36092)]