202915960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{390223}}^1$

素因数の和:390247

約数の個数: 32

約数和(自身を含む): 491682240

約数和(自身を除く): 288766280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 390223, 780446, 1560892, 1951115, 3121784, 3902230, 5072899, 7804460, 10145798, 15608920, 20291596, 25364495, 40583192, 50728990, 101457980, 202915960]

約数ペア:

[(1, 202915960), (2, 101457980), (4, 50728990), (5, 40583192), (8, 25364495), (10, 20291596), (13, 15608920), (20, 10145798), (26, 7804460), (40, 5072899), (52, 3902230), (65, 3121784), (104, 1951115), (130, 1560892), (260, 780446), (520, 390223)]