20403900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1$

素因数の和:266

約数の個数: 180

約数和(自身を含む): 72469320

約数和(自身を除く): 52065420

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, 81, 90, 99, 100, 108, 110, 132, 135, 150, 162, 165, 180, 198, 220, 225, 229, 270, 275, 297, 300, 324, 330, 396, 405, 450, 458, 495, 540, 550, 594, 660, 675, 687, 810, 825, 891, 900, 916, 990, 1100, 1145, 1188, 1350, 1374, 1485, 1620, 1650, 1782, 1980, 2025, 2061, 2290, 2475, 2519, 2700, 2748, 2970, 3300, 3435, 3564, 4050, 4122, 4455, 4580, 4950, 5038, 5725, 5940, 6183, 6870, 7425, 7557, 8100, 8244, 8910, 9900, 10076, 10305, 11450, 12366, 12595, 13740, 14850, 15114, 17175, 17820, 18549, 20610, 22275, 22671, 22900, 24732, 25190, 29700, 30228, 30915, 34350, 37098, 37785, 41220, 44550, 45342, 50380, 51525, 61830, 62975, 68013, 68700, 74196, 75570, 89100, 90684, 92745, 103050, 113355, 123660, 125950, 136026, 151140, 154575, 185490, 188925, 204039, 206100, 226710, 251900, 272052, 309150, 340065, 370980, 377850, 408078, 453420, 463725, 566775, 618300, 680130, 755700, 816156, 927450, 1020195, 1133550, 1360260, 1700325, 1854900, 2040390, 2267100, 3400650, 4080780, 5100975, 6801300, 10201950, 20403900]

約数ペア:

[(1, 20403900), (2, 10201950), (3, 6801300), (4, 5100975), (5, 4080780), (6, 3400650), (9, 2267100), (10, 2040390), (11, 1854900), (12, 1700325), (15, 1360260), (18, 1133550), (20, 1020195), (22, 927450), (25, 816156), (27, 755700), (30, 680130), (33, 618300), (36, 566775), (44, 463725), (45, 453420), (50, 408078), (54, 377850), (55, 370980), (60, 340065), (66, 309150), (75, 272052), (81, 251900), (90, 226710), (99, 206100), (100, 204039), (108, 188925), (110, 185490), (132, 154575), (135, 151140), (150, 136026), (162, 125950), (165, 123660), (180, 113355), (198, 103050), (220, 92745), (225, 90684), (229, 89100), (270, 75570), (275, 74196), (297, 68700), (300, 68013), (324, 62975), (330, 61830), (396, 51525), (405, 50380), (450, 45342), (458, 44550), (495, 41220), (540, 37785), (550, 37098), (594, 34350), (660, 30915), (675, 30228), (687, 29700), (810, 25190), (825, 24732), (891, 22900), (900, 22671), (916, 22275), (990, 20610), (1100, 18549), (1145, 17820), (1188, 17175), (1350, 15114), (1374, 14850), (1485, 13740), (1620, 12595), (1650, 12366), (1782, 11450), (1980, 10305), (2025, 10076), (2061, 9900), (2290, 8910), (2475, 8244), (2519, 8100), (2700, 7557), (2748, 7425), (2970, 6870), (3300, 6183), (3435, 5940), (3564, 5725), (4050, 5038), (4122, 4950), (4455, 4580)]