78106840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 216950400

約数和(自身を除く): 138843560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 61, 68, 70, 85, 119, 122, 136, 140, 170, 238, 244, 269, 280, 305, 340, 427, 476, 488, 538, 595, 610, 680, 854, 952, 1037, 1076, 1190, 1220, 1345, 1708, 1883, 2074, 2135, 2152, 2380, 2440, 2690, 3416, 3766, 4148, 4270, 4573, 4760, 5185, 5380, 7259, 7532, 8296, 8540, 9146, 9415, 10370, 10760, 14518, 15064, 16409, 17080, 18292, 18830, 20740, 22865, 29036, 32011, 32818, 36295, 36584, 37660, 41480, 45730, 58072, 64022, 65636, 72590, 75320, 82045, 91460, 114863, 128044, 131272, 145180, 160055, 164090, 182920, 229726, 256088, 278953, 290360, 320110, 328180, 459452, 557906, 574315, 640220, 656360, 918904, 1115812, 1148630, 1280440, 1394765, 1952671, 2231624, 2297260, 2789530, 3905342, 4594520, 5579060, 7810684, 9763355, 11158120, 15621368, 19526710, 39053420, 78106840]

約数ペア:

[(1, 78106840), (2, 39053420), (4, 19526710), (5, 15621368), (7, 11158120), (8, 9763355), (10, 7810684), (14, 5579060), (17, 4594520), (20, 3905342), (28, 2789530), (34, 2297260), (35, 2231624), (40, 1952671), (56, 1394765), (61, 1280440), (68, 1148630), (70, 1115812), (85, 918904), (119, 656360), (122, 640220), (136, 574315), (140, 557906), (170, 459452), (238, 328180), (244, 320110), (269, 290360), (280, 278953), (305, 256088), (340, 229726), (427, 182920), (476, 164090), (488, 160055), (538, 145180), (595, 131272), (610, 128044), (680, 114863), (854, 91460), (952, 82045), (1037, 75320), (1076, 72590), (1190, 65636), (1220, 64022), (1345, 58072), (1708, 45730), (1883, 41480), (2074, 37660), (2135, 36584), (2152, 36295), (2380, 32818), (2440, 32011), (2690, 29036), (3416, 22865), (3766, 20740), (4148, 18830), (4270, 18292), (4573, 17080), (4760, 16409), (5185, 15064), (5380, 14518), (7259, 10760), (7532, 10370), (8296, 9415), (8540, 9146)]