20185222720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{659}}^1$

素因数の和:925

約数の個数: 224

約数和(自身を含む): 53510688000

約数和(自身を除く): 33325465280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 130, 148, 160, 185, 199, 208, 260, 296, 320, 370, 398, 416, 481, 520, 592, 659, 740, 796, 832, 962, 995, 1040, 1184, 1318, 1480, 1592, 1924, 1990, 2080, 2368, 2405, 2587, 2636, 2960, 3184, 3295, 3848, 3980, 4160, 4810, 5174, 5272, 5920, 6368, 6590, 7363, 7696, 7960, 8567, 9620, 10348, 10544, 11840, 12736, 12935, 13180, 14726, 15392, 15920, 17134, 19240, 20696, 21088, 24383, 25870, 26360, 29452, 30784, 31840, 34268, 36815, 38480, 41392, 42176, 42835, 48766, 51740, 52720, 58904, 63680, 68536, 73630, 76960, 82784, 85670, 95719, 97532, 103480, 105440, 117808, 121915, 131141, 137072, 147260, 153920, 165568, 171340, 191438, 195064, 206960, 210880, 235616, 243830, 262282, 274144, 294520, 316979, 342680, 382876, 390128, 413920, 471232, 478595, 487660, 524564, 548288, 589040, 633958, 655705, 685360, 765752, 780256, 827840, 957190, 975320, 1049128, 1178080, 1267916, 1311410, 1370720, 1531504, 1560512, 1584895, 1704833, 1914380, 1950640, 2098256, 2356160, 2535832, 2622820, 2741440, 3063008, 3169790, 3409666, 3828760, 3901280, 4196512, 4852217, 5071664, 5245640, 6126016, 6339580, 6819332, 7657520, 7802560, 8393024, 8524165, 9704434, 10143328, 10491280, 12679160, 13638664, 15315040, 17048330, 19408868, 20286656, 20982560, 24261085, 25358320, 27277328, 30630080, 34096660, 38817736, 41965120, 48522170, 50716640, 54554656, 63078821, 68193320, 77635472, 97044340, 101433280, 109109312, 126157642, 136386640, 155270944, 194088680, 252315284, 272773280, 310541888, 315394105, 388177360, 504630568, 545546560, 630788210, 776354720, 1009261136, 1261576420, 1552709440, 2018522272, 2523152840, 4037044544, 5046305680, 10092611360, 20185222720]

約数ペア:

[(1, 20185222720), (2, 10092611360), (4, 5046305680), (5, 4037044544), (8, 2523152840), (10, 2018522272), (13, 1552709440), (16, 1261576420), (20, 1009261136), (26, 776354720), (32, 630788210), (37, 545546560), (40, 504630568), (52, 388177360), (64, 315394105), (65, 310541888), (74, 272773280), (80, 252315284), (104, 194088680), (130, 155270944), (148, 136386640), (160, 126157642), (185, 109109312), (199, 101433280), (208, 97044340), (260, 77635472), (296, 68193320), (320, 63078821), (370, 54554656), (398, 50716640), (416, 48522170), (481, 41965120), (520, 38817736), (592, 34096660), (659, 30630080), (740, 27277328), (796, 25358320), (832, 24261085), (962, 20982560), (995, 20286656), (1040, 19408868), (1184, 17048330), (1318, 15315040), (1480, 13638664), (1592, 12679160), (1924, 10491280), (1990, 10143328), (2080, 9704434), (2368, 8524165), (2405, 8393024), (2587, 7802560), (2636, 7657520), (2960, 6819332), (3184, 6339580), (3295, 6126016), (3848, 5245640), (3980, 5071664), (4160, 4852217), (4810, 4196512), (5174, 3901280), (5272, 3828760), (5920, 3409666), (6368, 3169790), (6590, 3063008), (7363, 2741440), (7696, 2622820), (7960, 2535832), (8567, 2356160), (9620, 2098256), (10348, 1950640), (10544, 1914380), (11840, 1704833), (12736, 1584895), (12935, 1560512), (13180, 1531504), (14726, 1370720), (15392, 1311410), (15920, 1267916), (17134, 1178080), (19240, 1049128), (20696, 975320), (21088, 957190), (24383, 827840), (25870, 780256), (26360, 765752), (29452, 685360), (30784, 655705), (31840, 633958), (34268, 589040), (36815, 548288), (38480, 524564), (41392, 487660), (42176, 478595), (42835, 471232), (48766, 413920), (51740, 390128), (52720, 382876), (58904, 342680), (63680, 316979), (68536, 294520), (73630, 274144), (76960, 262282), (82784, 243830), (85670, 235616), (95719, 210880), (97532, 206960), (103480, 195064), (105440, 191438), (117808, 171340), (121915, 165568), (131141, 153920), (137072, 147260)]