66940160

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:300

約数の個数: 144

約数和(自身を含む): 189944832

約数和(自身を除く): 123004672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 241, 248, 256, 280, 310, 320, 434, 448, 482, 496, 560, 620, 640, 868, 896, 964, 992, 1085, 1120, 1205, 1240, 1280, 1687, 1736, 1792, 1928, 1984, 2170, 2240, 2410, 2480, 3374, 3472, 3856, 3968, 4340, 4480, 4820, 4960, 6748, 6944, 7471, 7712, 7936, 8435, 8680, 8960, 9640, 9920, 13496, 13888, 14942, 15424, 16870, 17360, 19280, 19840, 26992, 27776, 29884, 30848, 33740, 34720, 37355, 38560, 39680, 52297, 53984, 55552, 59768, 61696, 67480, 69440, 74710, 77120, 104594, 107968, 119536, 134960, 138880, 149420, 154240, 209188, 215936, 239072, 261485, 269920, 277760, 298840, 308480, 418376, 431872, 478144, 522970, 539840, 597680, 836752, 956288, 1045940, 1079680, 1195360, 1673504, 1912576, 2091880, 2159360, 2390720, 3347008, 4183760, 4781440, 6694016, 8367520, 9562880, 13388032, 16735040, 33470080, 66940160]

約数ペア:

[(1, 66940160), (2, 33470080), (4, 16735040), (5, 13388032), (7, 9562880), (8, 8367520), (10, 6694016), (14, 4781440), (16, 4183760), (20, 3347008), (28, 2390720), (31, 2159360), (32, 2091880), (35, 1912576), (40, 1673504), (56, 1195360), (62, 1079680), (64, 1045940), (70, 956288), (80, 836752), (112, 597680), (124, 539840), (128, 522970), (140, 478144), (155, 431872), (160, 418376), (217, 308480), (224, 298840), (241, 277760), (248, 269920), (256, 261485), (280, 239072), (310, 215936), (320, 209188), (434, 154240), (448, 149420), (482, 138880), (496, 134960), (560, 119536), (620, 107968), (640, 104594), (868, 77120), (896, 74710), (964, 69440), (992, 67480), (1085, 61696), (1120, 59768), (1205, 55552), (1240, 53984), (1280, 52297), (1687, 39680), (1736, 38560), (1792, 37355), (1928, 34720), (1984, 33740), (2170, 30848), (2240, 29884), (2410, 27776), (2480, 26992), (3374, 19840), (3472, 19280), (3856, 17360), (3968, 16870), (4340, 15424), (4480, 14942), (4820, 13888), (4960, 13496), (6748, 9920), (6944, 9640), (7471, 8960), (7712, 8680), (7936, 8435)]