66551680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:472

約数の個数: 128

約数和(自身を含む): 180784800

約数和(自身を除く): 114233120

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, 421, 494, 520, 608, 640, 760, 832, 842, 988, 1040, 1216, 1235, 1520, 1664, 1684, 1976, 2080, 2105, 2432, 2470, 3040, 3368, 3952, 4160, 4210, 4940, 5473, 6080, 6736, 7904, 7999, 8320, 8420, 9880, 10946, 12160, 13472, 15808, 15998, 16840, 19760, 21892, 26944, 27365, 31616, 31996, 33680, 39520, 39995, 43784, 53888, 54730, 63992, 67360, 79040, 79990, 87568, 103987, 109460, 127984, 134720, 158080, 159980, 175136, 207974, 218920, 255968, 269440, 319960, 350272, 415948, 437840, 511936, 519935, 639920, 700544, 831896, 875680, 1023872, 1039870, 1279840, 1663792, 1751360, 2079740, 2559680, 3327584, 3502720, 4159480, 5119360, 6655168, 8318960, 13310336, 16637920, 33275840, 66551680]

約数ペア:

[(1, 66551680), (2, 33275840), (4, 16637920), (5, 13310336), (8, 8318960), (10, 6655168), (13, 5119360), (16, 4159480), (19, 3502720), (20, 3327584), (26, 2559680), (32, 2079740), (38, 1751360), (40, 1663792), (52, 1279840), (64, 1039870), (65, 1023872), (76, 875680), (80, 831896), (95, 700544), (104, 639920), (128, 519935), (130, 511936), (152, 437840), (160, 415948), (190, 350272), (208, 319960), (247, 269440), (260, 255968), (304, 218920), (320, 207974), (380, 175136), (416, 159980), (421, 158080), (494, 134720), (520, 127984), (608, 109460), (640, 103987), (760, 87568), (832, 79990), (842, 79040), (988, 67360), (1040, 63992), (1216, 54730), (1235, 53888), (1520, 43784), (1664, 39995), (1684, 39520), (1976, 33680), (2080, 31996), (2105, 31616), (2432, 27365), (2470, 26944), (3040, 21892), (3368, 19760), (3952, 16840), (4160, 15998), (4210, 15808), (4940, 13472), (5473, 12160), (6080, 10946), (6736, 9880), (7904, 8420), (7999, 8320)]