1815664040

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{359}}^1\times {\mathrm{557}}^1$

素因数の和:1154

約数の個数: 64

約数和(自身を含む): 4122057600

約数和(自身を除く): 2306393560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 359, 454, 557, 718, 908, 1114, 1135, 1436, 1795, 1816, 2228, 2270, 2785, 2872, 3590, 4456, 4540, 5570, 7180, 9080, 11140, 14360, 22280, 81493, 126439, 162986, 199963, 252878, 325972, 399926, 407465, 505756, 632195, 651944, 799852, 814930, 999815, 1011512, 1264390, 1599704, 1629860, 1999630, 2528780, 3259720, 3999260, 5057560, 7998520, 45391601, 90783202, 181566404, 226958005, 363132808, 453916010, 907832020, 1815664040]

約数ペア:

[(1, 1815664040), (2, 907832020), (4, 453916010), (5, 363132808), (8, 226958005), (10, 181566404), (20, 90783202), (40, 45391601), (227, 7998520), (359, 5057560), (454, 3999260), (557, 3259720), (718, 2528780), (908, 1999630), (1114, 1629860), (1135, 1599704), (1436, 1264390), (1795, 1011512), (1816, 999815), (2228, 814930), (2270, 799852), (2785, 651944), (2872, 632195), (3590, 505756), (4456, 407465), (4540, 399926), (5570, 325972), (7180, 252878), (9080, 199963), (11140, 162986), (14360, 126439), (22280, 81493)]