251745410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^3\times {\mathrm{71}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 539758080

約数和(自身を除く): 288012670

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 71, 74, 142, 185, 259, 355, 370, 497, 518, 710, 994, 1295, 1369, 2485, 2590, 2627, 2738, 4970, 5254, 6845, 9583, 13135, 13690, 18389, 19166, 26270, 36778, 47915, 50653, 91945, 95830, 97199, 101306, 183890, 194398, 253265, 354571, 485995, 506530, 680393, 709142, 971990, 1360786, 1772855, 3401965, 3545710, 3596363, 6803930, 7192726, 17981815, 25174541, 35963630, 50349082, 125872705, 251745410]

約数ペア:

[(1, 251745410), (2, 125872705), (5, 50349082), (7, 35963630), (10, 25174541), (14, 17981815), (35, 7192726), (37, 6803930), (70, 3596363), (71, 3545710), (74, 3401965), (142, 1772855), (185, 1360786), (259, 971990), (355, 709142), (370, 680393), (497, 506530), (518, 485995), (710, 354571), (994, 253265), (1295, 194398), (1369, 183890), (2485, 101306), (2590, 97199), (2627, 95830), (2738, 91945), (4970, 50653), (5254, 47915), (6845, 36778), (9583, 26270), (13135, 19166), (13690, 18389)]