20641500

素因数分解:

$2^2\times 3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:178

約数の個数: 192

約数和(自身を含む): 73382400

約数和(自身を除く): 52740900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 27, 30, 33, 36, 44, 45, 50, 54, 55, 60, 66, 75, 90, 99, 100, 108, 110, 125, 132, 135, 139, 150, 165, 180, 198, 220, 225, 250, 270, 275, 278, 297, 300, 330, 375, 396, 417, 450, 495, 500, 540, 550, 556, 594, 660, 675, 695, 750, 825, 834, 900, 990, 1100, 1125, 1188, 1251, 1350, 1375, 1390, 1485, 1500, 1529, 1650, 1668, 1980, 2085, 2250, 2475, 2502, 2700, 2750, 2780, 2970, 3058, 3300, 3375, 3475, 3753, 4125, 4170, 4500, 4587, 4950, 5004, 5500, 5940, 6116, 6255, 6750, 6950, 7425, 7506, 7645, 8250, 8340, 9174, 9900, 10425, 12375, 12510, 13500, 13761, 13900, 14850, 15012, 15290, 16500, 17375, 18348, 18765, 20850, 22935, 24750, 25020, 27522, 29700, 30580, 31275, 34750, 37125, 37530, 38225, 41283, 41700, 45870, 49500, 52125, 55044, 62550, 68805, 69500, 74250, 75060, 76450, 82566, 91740, 93825, 104250, 114675, 125100, 137610, 148500, 152900, 156375, 165132, 187650, 191125, 206415, 208500, 229350, 275220, 312750, 344025, 375300, 382250, 412830, 458700, 469125, 573375, 625500, 688050, 764500, 825660, 938250, 1032075, 1146750, 1376100, 1720125, 1876500, 2064150, 2293500, 3440250, 4128300, 5160375, 6880500, 10320750, 20641500]

約数ペア:

[(1, 20641500), (2, 10320750), (3, 6880500), (4, 5160375), (5, 4128300), (6, 3440250), (9, 2293500), (10, 2064150), (11, 1876500), (12, 1720125), (15, 1376100), (18, 1146750), (20, 1032075), (22, 938250), (25, 825660), (27, 764500), (30, 688050), (33, 625500), (36, 573375), (44, 469125), (45, 458700), (50, 412830), (54, 382250), (55, 375300), (60, 344025), (66, 312750), (75, 275220), (90, 229350), (99, 208500), (100, 206415), (108, 191125), (110, 187650), (125, 165132), (132, 156375), (135, 152900), (139, 148500), (150, 137610), (165, 125100), (180, 114675), (198, 104250), (220, 93825), (225, 91740), (250, 82566), (270, 76450), (275, 75060), (278, 74250), (297, 69500), (300, 68805), (330, 62550), (375, 55044), (396, 52125), (417, 49500), (450, 45870), (495, 41700), (500, 41283), (540, 38225), (550, 37530), (556, 37125), (594, 34750), (660, 31275), (675, 30580), (695, 29700), (750, 27522), (825, 25020), (834, 24750), (900, 22935), (990, 20850), (1100, 18765), (1125, 18348), (1188, 17375), (1251, 16500), (1350, 15290), (1375, 15012), (1390, 14850), (1485, 13900), (1500, 13761), (1529, 13500), (1650, 12510), (1668, 12375), (1980, 10425), (2085, 9900), (2250, 9174), (2475, 8340), (2502, 8250), (2700, 7645), (2750, 7506), (2780, 7425), (2970, 6950), (3058, 6750), (3300, 6255), (3375, 6116), (3475, 5940), (3753, 5500), (4125, 5004), (4170, 4950), (4500, 4587)]