274538320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{490247}}^1$

素因数の和:490267

約数の個数: 40

約数和(自身を含む): 729489024

約数和(自身を除く): 454950704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 490247, 980494, 1960988, 2451235, 3431729, 3921976, 4902470, 6863458, 7843952, 9804940, 13726916, 17158645, 19609880, 27453832, 34317290, 39219760, 54907664, 68634580, 137269160, 274538320]

約数ペア:

[(1, 274538320), (2, 137269160), (4, 68634580), (5, 54907664), (7, 39219760), (8, 34317290), (10, 27453832), (14, 19609880), (16, 17158645), (20, 13726916), (28, 9804940), (35, 7843952), (40, 6863458), (56, 4902470), (70, 3921976), (80, 3431729), (112, 2451235), (140, 1960988), (280, 980494), (560, 490247)]