21128474080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{16447}}^1$

素因数の和:16537

約数の個数: 192

約数和(自身を含む): 60482322432

約数和(自身を除く): 39353848352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 37, 40, 56, 62, 70, 74, 80, 112, 124, 140, 148, 155, 160, 185, 217, 224, 248, 259, 280, 296, 310, 370, 434, 496, 518, 560, 592, 620, 740, 868, 992, 1036, 1085, 1120, 1147, 1184, 1240, 1295, 1480, 1736, 2072, 2170, 2294, 2480, 2590, 2960, 3472, 4144, 4340, 4588, 4960, 5180, 5735, 5920, 6944, 8029, 8288, 8680, 9176, 10360, 11470, 16058, 16447, 17360, 18352, 20720, 22940, 32116, 32894, 34720, 36704, 40145, 41440, 45880, 64232, 65788, 80290, 82235, 91760, 115129, 128464, 131576, 160580, 164470, 183520, 230258, 256928, 263152, 321160, 328940, 460516, 509857, 526304, 575645, 608539, 642320, 657880, 921032, 1019714, 1151290, 1217078, 1284640, 1315760, 1842064, 2039428, 2302580, 2434156, 2549285, 2631520, 3042695, 3568999, 3684128, 4078856, 4259773, 4605160, 4868312, 5098570, 6085390, 7137998, 8157712, 8519546, 9210320, 9736624, 10197140, 12170780, 14275996, 16315424, 17039092, 17844995, 18420640, 18864709, 19473248, 20394280, 21298865, 24341560, 28551992, 34078184, 35689990, 37729418, 40788560, 42597730, 48683120, 57103984, 68156368, 71379980, 75458836, 81577120, 85195460, 94323545, 97366240, 114207968, 132052963, 136312736, 142759960, 150917672, 170390920, 188647090, 264105926, 285519920, 301835344, 340781840, 377294180, 528211852, 571039840, 603670688, 660264815, 681563680, 754588360, 1056423704, 1320529630, 1509176720, 2112847408, 2641059260, 3018353440, 4225694816, 5282118520, 10564237040, 21128474080]

約数ペア:

[(1, 21128474080), (2, 10564237040), (4, 5282118520), (5, 4225694816), (7, 3018353440), (8, 2641059260), (10, 2112847408), (14, 1509176720), (16, 1320529630), (20, 1056423704), (28, 754588360), (31, 681563680), (32, 660264815), (35, 603670688), (37, 571039840), (40, 528211852), (56, 377294180), (62, 340781840), (70, 301835344), (74, 285519920), (80, 264105926), (112, 188647090), (124, 170390920), (140, 150917672), (148, 142759960), (155, 136312736), (160, 132052963), (185, 114207968), (217, 97366240), (224, 94323545), (248, 85195460), (259, 81577120), (280, 75458836), (296, 71379980), (310, 68156368), (370, 57103984), (434, 48683120), (496, 42597730), (518, 40788560), (560, 37729418), (592, 35689990), (620, 34078184), (740, 28551992), (868, 24341560), (992, 21298865), (1036, 20394280), (1085, 19473248), (1120, 18864709), (1147, 18420640), (1184, 17844995), (1240, 17039092), (1295, 16315424), (1480, 14275996), (1736, 12170780), (2072, 10197140), (2170, 9736624), (2294, 9210320), (2480, 8519546), (2590, 8157712), (2960, 7137998), (3472, 6085390), (4144, 5098570), (4340, 4868312), (4588, 4605160), (4960, 4259773), (5180, 4078856), (5735, 3684128), (5920, 3568999), (6944, 3042695), (8029, 2631520), (8288, 2549285), (8680, 2434156), (9176, 2302580), (10360, 2039428), (11470, 1842064), (16058, 1315760), (16447, 1284640), (17360, 1217078), (18352, 1151290), (20720, 1019714), (22940, 921032), (32116, 657880), (32894, 642320), (34720, 608539), (36704, 575645), (40145, 526304), (41440, 509857), (45880, 460516), (64232, 328940), (65788, 321160), (80290, 263152), (82235, 256928), (91760, 230258), (115129, 183520), (128464, 164470), (131576, 160580)]