66815840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{353}}^1$

素因数の和:401

約数の個数: 144

約数和(自身を含む): 195900768

約数和(自身を除く): 129084928

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 169, 182, 208, 224, 260, 280, 338, 353, 364, 416, 455, 520, 560, 676, 706, 728, 845, 910, 1040, 1120, 1183, 1352, 1412, 1456, 1690, 1765, 1820, 2080, 2366, 2471, 2704, 2824, 2912, 3380, 3530, 3640, 4589, 4732, 4942, 5408, 5648, 5915, 6760, 7060, 7280, 9178, 9464, 9884, 11296, 11830, 12355, 13520, 14120, 14560, 18356, 18928, 19768, 22945, 23660, 24710, 27040, 28240, 32123, 36712, 37856, 39536, 45890, 47320, 49420, 56480, 59657, 64246, 73424, 79072, 91780, 94640, 98840, 119314, 128492, 146848, 160615, 183560, 189280, 197680, 238628, 256984, 298285, 321230, 367120, 395360, 417599, 477256, 513968, 596570, 642460, 734240, 835198, 954512, 1027936, 1193140, 1284920, 1670396, 1909024, 2087995, 2386280, 2569840, 3340792, 4175990, 4772560, 5139680, 6681584, 8351980, 9545120, 13363168, 16703960, 33407920, 66815840]

約数ペア:

[(1, 66815840), (2, 33407920), (4, 16703960), (5, 13363168), (7, 9545120), (8, 8351980), (10, 6681584), (13, 5139680), (14, 4772560), (16, 4175990), (20, 3340792), (26, 2569840), (28, 2386280), (32, 2087995), (35, 1909024), (40, 1670396), (52, 1284920), (56, 1193140), (65, 1027936), (70, 954512), (80, 835198), (91, 734240), (104, 642460), (112, 596570), (130, 513968), (140, 477256), (160, 417599), (169, 395360), (182, 367120), (208, 321230), (224, 298285), (260, 256984), (280, 238628), (338, 197680), (353, 189280), (364, 183560), (416, 160615), (455, 146848), (520, 128492), (560, 119314), (676, 98840), (706, 94640), (728, 91780), (845, 79072), (910, 73424), (1040, 64246), (1120, 59657), (1183, 56480), (1352, 49420), (1412, 47320), (1456, 45890), (1690, 39536), (1765, 37856), (1820, 36712), (2080, 32123), (2366, 28240), (2471, 27040), (2704, 24710), (2824, 23660), (2912, 22945), (3380, 19768), (3530, 18928), (3640, 18356), (4589, 14560), (4732, 14120), (4942, 13520), (5408, 12355), (5648, 11830), (5915, 11296), (6760, 9884), (7060, 9464), (7280, 9178)]