66709760

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 181997760

約数和(自身を除く): 115288000

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, 211, 247, 256, 260, 304, 320, 380, 416, 422, 494, 520, 608, 640, 760, 832, 844, 988, 1040, 1055, 1216, 1235, 1280, 1520, 1664, 1688, 1976, 2080, 2110, 2432, 2470, 2743, 3040, 3328, 3376, 3952, 4009, 4160, 4220, 4864, 4940, 5486, 6080, 6752, 7904, 8018, 8320, 8440, 9880, 10972, 12160, 13504, 13715, 15808, 16036, 16640, 16880, 19760, 20045, 21944, 24320, 27008, 27430, 31616, 32072, 33760, 39520, 40090, 43888, 52117, 54016, 54860, 63232, 64144, 67520, 79040, 80180, 87776, 104234, 109720, 128288, 135040, 158080, 160360, 175552, 208468, 219440, 256576, 260585, 270080, 316160, 320720, 351104, 416936, 438880, 513152, 521170, 641440, 702208, 833872, 877760, 1026304, 1042340, 1282880, 1667744, 1755520, 2084680, 2565760, 3335488, 3511040, 4169360, 5131520, 6670976, 8338720, 13341952, 16677440, 33354880, 66709760]

約数ペア:

[(1, 66709760), (2, 33354880), (4, 16677440), (5, 13341952), (8, 8338720), (10, 6670976), (13, 5131520), (16, 4169360), (19, 3511040), (20, 3335488), (26, 2565760), (32, 2084680), (38, 1755520), (40, 1667744), (52, 1282880), (64, 1042340), (65, 1026304), (76, 877760), (80, 833872), (95, 702208), (104, 641440), (128, 521170), (130, 513152), (152, 438880), (160, 416936), (190, 351104), (208, 320720), (211, 316160), (247, 270080), (256, 260585), (260, 256576), (304, 219440), (320, 208468), (380, 175552), (416, 160360), (422, 158080), (494, 135040), (520, 128288), (608, 109720), (640, 104234), (760, 87776), (832, 80180), (844, 79040), (988, 67520), (1040, 64144), (1055, 63232), (1216, 54860), (1235, 54016), (1280, 52117), (1520, 43888), (1664, 40090), (1688, 39520), (1976, 33760), (2080, 32072), (2110, 31616), (2432, 27430), (2470, 27008), (2743, 24320), (3040, 21944), (3328, 20045), (3376, 19760), (3952, 16880), (4009, 16640), (4160, 16036), (4220, 15808), (4864, 13715), (4940, 13504), (5486, 12160), (6080, 10972), (6752, 9880), (7904, 8440), (8018, 8320)]