20156178500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:475

約数の個数: 192

約数和(自身を含む): 47551795200

約数和(自身を除く): 27395616700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 79, 95, 100, 107, 125, 158, 190, 214, 250, 251, 316, 380, 395, 428, 475, 500, 502, 535, 790, 950, 1004, 1070, 1255, 1501, 1580, 1900, 1975, 2033, 2140, 2375, 2510, 2675, 3002, 3950, 4066, 4750, 4769, 5020, 5350, 6004, 6275, 7505, 7900, 8132, 8453, 9500, 9538, 9875, 10165, 10700, 12550, 13375, 15010, 16906, 19076, 19750, 19829, 20330, 23845, 25100, 26750, 26857, 30020, 31375, 33812, 37525, 39500, 39658, 40660, 42265, 47690, 50825, 53500, 53714, 62750, 75050, 79316, 84530, 95380, 99145, 101650, 107428, 119225, 125500, 134285, 150100, 160607, 169060, 187625, 198290, 203300, 211325, 238450, 254125, 268570, 321214, 375250, 376751, 396580, 422650, 476900, 495725, 508250, 510283, 537140, 596125, 642428, 671425, 750500, 753502, 803035, 845300, 991450, 1016500, 1020566, 1056625, 1192250, 1342850, 1507004, 1606070, 1883755, 1982900, 2041132, 2113250, 2121703, 2384500, 2478625, 2551415, 2685700, 3212140, 3357125, 3767510, 4015175, 4226500, 4243406, 4957250, 5102830, 6714250, 7535020, 8030350, 8486812, 9418775, 9914500, 10205660, 10608515, 12757075, 13428500, 16060700, 18837550, 20075875, 21217030, 25514150, 37675100, 40151750, 40312357, 42434060, 47093875, 51028300, 53042575, 63785375, 80303500, 80624714, 94187750, 106085150, 127570750, 161249428, 188375500, 201561785, 212170300, 255141500, 265212875, 403123570, 530425750, 806247140, 1007808925, 1060851500, 2015617850, 4031235700, 5039044625, 10078089250, 20156178500]

約数ペア:

[(1, 20156178500), (2, 10078089250), (4, 5039044625), (5, 4031235700), (10, 2015617850), (19, 1060851500), (20, 1007808925), (25, 806247140), (38, 530425750), (50, 403123570), (76, 265212875), (79, 255141500), (95, 212170300), (100, 201561785), (107, 188375500), (125, 161249428), (158, 127570750), (190, 106085150), (214, 94187750), (250, 80624714), (251, 80303500), (316, 63785375), (380, 53042575), (395, 51028300), (428, 47093875), (475, 42434060), (500, 40312357), (502, 40151750), (535, 37675100), (790, 25514150), (950, 21217030), (1004, 20075875), (1070, 18837550), (1255, 16060700), (1501, 13428500), (1580, 12757075), (1900, 10608515), (1975, 10205660), (2033, 9914500), (2140, 9418775), (2375, 8486812), (2510, 8030350), (2675, 7535020), (3002, 6714250), (3950, 5102830), (4066, 4957250), (4750, 4243406), (4769, 4226500), (5020, 4015175), (5350, 3767510), (6004, 3357125), (6275, 3212140), (7505, 2685700), (7900, 2551415), (8132, 2478625), (8453, 2384500), (9500, 2121703), (9538, 2113250), (9875, 2041132), (10165, 1982900), (10700, 1883755), (12550, 1606070), (13375, 1507004), (15010, 1342850), (16906, 1192250), (19076, 1056625), (19750, 1020566), (19829, 1016500), (20330, 991450), (23845, 845300), (25100, 803035), (26750, 753502), (26857, 750500), (30020, 671425), (31375, 642428), (33812, 596125), (37525, 537140), (39500, 510283), (39658, 508250), (40660, 495725), (42265, 476900), (47690, 422650), (50825, 396580), (53500, 376751), (53714, 375250), (62750, 321214), (75050, 268570), (79316, 254125), (84530, 238450), (95380, 211325), (99145, 203300), (101650, 198290), (107428, 187625), (119225, 169060), (125500, 160607), (134285, 150100)]