128011520

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 216

約数和(自身を含む): 386573544

約数和(自身を除く): 258562024

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 157, 160, 182, 196, 208, 224, 245, 256, 260, 280, 314, 320, 364, 392, 416, 448, 455, 490, 520, 560, 628, 637, 640, 728, 784, 785, 832, 896, 910, 980, 1040, 1099, 1120, 1256, 1274, 1280, 1456, 1568, 1570, 1664, 1792, 1820, 1960, 2041, 2080, 2198, 2240, 2512, 2548, 2912, 3136, 3140, 3185, 3328, 3640, 3920, 4082, 4160, 4396, 4480, 5024, 5096, 5495, 5824, 6272, 6280, 6370, 7280, 7693, 7840, 8164, 8320, 8792, 8960, 10048, 10192, 10205, 10990, 11648, 12544, 12560, 12740, 14287, 14560, 15386, 15680, 16328, 16640, 17584, 20096, 20384, 20410, 21980, 23296, 25120, 25480, 28574, 29120, 30772, 31360, 32656, 35168, 38465, 40192, 40768, 40820, 43960, 50240, 50960, 57148, 58240, 61544, 62720, 65312, 70336, 71435, 76930, 81536, 81640, 87920, 100009, 100480, 101920, 114296, 116480, 123088, 130624, 140672, 142870, 153860, 163072, 163280, 175840, 200018, 200960, 203840, 228592, 246176, 261248, 281344, 285740, 307720, 326560, 351680, 400036, 407680, 457184, 492352, 500045, 522496, 571480, 615440, 653120, 703360, 800072, 815360, 914368, 984704, 1000090, 1142960, 1230880, 1306240, 1406720, 1600144, 1828736, 1969408, 2000180, 2285920, 2461760, 2612480, 3200288, 3657472, 4000360, 4571840, 4923520, 6400576, 8000720, 9143680, 9847040, 12801152, 16001440, 18287360, 25602304, 32002880, 64005760, 128011520]

約数ペア:

[(1, 128011520), (2, 64005760), (4, 32002880), (5, 25602304), (7, 18287360), (8, 16001440), (10, 12801152), (13, 9847040), (14, 9143680), (16, 8000720), (20, 6400576), (26, 4923520), (28, 4571840), (32, 4000360), (35, 3657472), (40, 3200288), (49, 2612480), (52, 2461760), (56, 2285920), (64, 2000180), (65, 1969408), (70, 1828736), (80, 1600144), (91, 1406720), (98, 1306240), (104, 1230880), (112, 1142960), (128, 1000090), (130, 984704), (140, 914368), (157, 815360), (160, 800072), (182, 703360), (196, 653120), (208, 615440), (224, 571480), (245, 522496), (256, 500045), (260, 492352), (280, 457184), (314, 407680), (320, 400036), (364, 351680), (392, 326560), (416, 307720), (448, 285740), (455, 281344), (490, 261248), (520, 246176), (560, 228592), (628, 203840), (637, 200960), (640, 200018), (728, 175840), (784, 163280), (785, 163072), (832, 153860), (896, 142870), (910, 140672), (980, 130624), (1040, 123088), (1099, 116480), (1120, 114296), (1256, 101920), (1274, 100480), (1280, 100009), (1456, 87920), (1568, 81640), (1570, 81536), (1664, 76930), (1792, 71435), (1820, 70336), (1960, 65312), (2041, 62720), (2080, 61544), (2198, 58240), (2240, 57148), (2512, 50960), (2548, 50240), (2912, 43960), (3136, 40820), (3140, 40768), (3185, 40192), (3328, 38465), (3640, 35168), (3920, 32656), (4082, 31360), (4160, 30772), (4396, 29120), (4480, 28574), (5024, 25480), (5096, 25120), (5495, 23296), (5824, 21980), (6272, 20410), (6280, 20384), (6370, 20096), (7280, 17584), (7693, 16640), (7840, 16328), (8164, 15680), (8320, 15386), (8792, 14560), (8960, 14287), (10048, 12740), (10192, 12560), (10205, 12544), (10990, 11648)]