197750920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{31489}}^1$

素因数の和:31657

約数の個数: 32

約数和(自身を含む): 447787800

約数和(自身を除く): 250036880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 31489, 62978, 125956, 157445, 251912, 314890, 629780, 1259560, 4943773, 9887546, 19775092, 24718865, 39550184, 49437730, 98875460, 197750920]

約数ペア:

[(1, 197750920), (2, 98875460), (4, 49437730), (5, 39550184), (8, 24718865), (10, 19775092), (20, 9887546), (40, 4943773), (157, 1259560), (314, 629780), (628, 314890), (785, 251912), (1256, 157445), (1570, 125956), (3140, 62978), (6280, 31489)]