20309850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{373}}^1$

素因数の和:413

約数の個数: 108

約数和(自身を含む): 60138078

約数和(自身を除く): 39828228

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 75, 90, 99, 110, 121, 150, 165, 198, 225, 242, 275, 330, 363, 373, 450, 495, 550, 605, 726, 746, 825, 990, 1089, 1119, 1210, 1650, 1815, 1865, 2178, 2238, 2475, 3025, 3357, 3630, 3730, 4103, 4950, 5445, 5595, 6050, 6714, 8206, 9075, 9325, 10890, 11190, 12309, 16785, 18150, 18650, 20515, 24618, 27225, 27975, 33570, 36927, 41030, 45133, 54450, 55950, 61545, 73854, 83925, 90266, 102575, 123090, 135399, 167850, 184635, 205150, 225665, 270798, 307725, 369270, 406197, 451330, 615450, 676995, 812394, 923175, 1128325, 1353990, 1846350, 2030985, 2256650, 3384975, 4061970, 6769950, 10154925, 20309850]

約数ペア:

[(1, 20309850), (2, 10154925), (3, 6769950), (5, 4061970), (6, 3384975), (9, 2256650), (10, 2030985), (11, 1846350), (15, 1353990), (18, 1128325), (22, 923175), (25, 812394), (30, 676995), (33, 615450), (45, 451330), (50, 406197), (55, 369270), (66, 307725), (75, 270798), (90, 225665), (99, 205150), (110, 184635), (121, 167850), (150, 135399), (165, 123090), (198, 102575), (225, 90266), (242, 83925), (275, 73854), (330, 61545), (363, 55950), (373, 54450), (450, 45133), (495, 41030), (550, 36927), (605, 33570), (726, 27975), (746, 27225), (825, 24618), (990, 20515), (1089, 18650), (1119, 18150), (1210, 16785), (1650, 12309), (1815, 11190), (1865, 10890), (2178, 9325), (2238, 9075), (2475, 8206), (3025, 6714), (3357, 6050), (3630, 5595), (3730, 5445), (4103, 4950)]