80001900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8081}}^1$

素因数の和:8112

約数の個数: 108

約数和(自身を含む): 273591864

約数和(自身を除く): 193589964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 30, 33, 36, 44, 45, 50, 55, 60, 66, 75, 90, 99, 100, 110, 132, 150, 165, 180, 198, 220, 225, 275, 300, 330, 396, 450, 495, 550, 660, 825, 900, 990, 1100, 1650, 1980, 2475, 3300, 4950, 8081, 9900, 16162, 24243, 32324, 40405, 48486, 72729, 80810, 88891, 96972, 121215, 145458, 161620, 177782, 202025, 242430, 266673, 290916, 355564, 363645, 404050, 444455, 484860, 533346, 606075, 727290, 800019, 808100, 888910, 1066692, 1212150, 1333365, 1454580, 1600038, 1777820, 1818225, 2222275, 2424300, 2666730, 3200076, 3636450, 4000095, 4444550, 5333460, 6666825, 7272900, 8000190, 8889100, 13333650, 16000380, 20000475, 26667300, 40000950, 80001900]

約数ペア:

[(1, 80001900), (2, 40000950), (3, 26667300), (4, 20000475), (5, 16000380), (6, 13333650), (9, 8889100), (10, 8000190), (11, 7272900), (12, 6666825), (15, 5333460), (18, 4444550), (20, 4000095), (22, 3636450), (25, 3200076), (30, 2666730), (33, 2424300), (36, 2222275), (44, 1818225), (45, 1777820), (50, 1600038), (55, 1454580), (60, 1333365), (66, 1212150), (75, 1066692), (90, 888910), (99, 808100), (100, 800019), (110, 727290), (132, 606075), (150, 533346), (165, 484860), (180, 444455), (198, 404050), (220, 363645), (225, 355564), (275, 290916), (300, 266673), (330, 242430), (396, 202025), (450, 177782), (495, 161620), (550, 145458), (660, 121215), (825, 96972), (900, 88891), (990, 80810), (1100, 72729), (1650, 48486), (1980, 40405), (2475, 32324), (3300, 24243), (4950, 16162), (8081, 9900)]