18915694720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{119659}}^1$

素因数の和:119710

約数の個数: 128

約数和(自身を含む): 51262344000

約数和(自身を除く): 32346649280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 128, 130, 152, 160, 190, 208, 247, 260, 304, 320, 380, 416, 494, 520, 608, 640, 760, 832, 988, 1040, 1216, 1235, 1520, 1664, 1976, 2080, 2432, 2470, 3040, 3952, 4160, 4940, 6080, 7904, 8320, 9880, 12160, 15808, 19760, 31616, 39520, 79040, 119659, 158080, 239318, 478636, 598295, 957272, 1196590, 1555567, 1914544, 2273521, 2393180, 3111134, 3829088, 4547042, 4786360, 6222268, 7658176, 7777835, 9094084, 9572720, 11367605, 12444536, 15316352, 15555670, 18188168, 19145440, 22735210, 24889072, 29555773, 31111340, 36376336, 38290880, 45470420, 49778144, 59111546, 62222680, 72752672, 76581760, 90940840, 99556288, 118223092, 124445360, 145505344, 147778865, 181881680, 199112576, 236446184, 248890720, 291010688, 295557730, 363763360, 472892368, 497781440, 591115460, 727526720, 945784736, 995562880, 1182230920, 1455053440, 1891569472, 2364461840, 3783138944, 4728923680, 9457847360, 18915694720]

約数ペア:

[(1, 18915694720), (2, 9457847360), (4, 4728923680), (5, 3783138944), (8, 2364461840), (10, 1891569472), (13, 1455053440), (16, 1182230920), (19, 995562880), (20, 945784736), (26, 727526720), (32, 591115460), (38, 497781440), (40, 472892368), (52, 363763360), (64, 295557730), (65, 291010688), (76, 248890720), (80, 236446184), (95, 199112576), (104, 181881680), (128, 147778865), (130, 145505344), (152, 124445360), (160, 118223092), (190, 99556288), (208, 90940840), (247, 76581760), (260, 72752672), (304, 62222680), (320, 59111546), (380, 49778144), (416, 45470420), (494, 38290880), (520, 36376336), (608, 31111340), (640, 29555773), (760, 24889072), (832, 22735210), (988, 19145440), (1040, 18188168), (1216, 15555670), (1235, 15316352), (1520, 12444536), (1664, 11367605), (1976, 9572720), (2080, 9094084), (2432, 7777835), (2470, 7658176), (3040, 6222268), (3952, 4786360), (4160, 4547042), (4940, 3829088), (6080, 3111134), (7904, 2393180), (8320, 2273521), (9880, 1914544), (12160, 1555567), (15808, 1196590), (19760, 957272), (31616, 598295), (39520, 478636), (79040, 239318), (119659, 158080)]