28631472020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1\times {\mathrm{54559}}^1$

素因数の和:55968

約数の個数: 48

約数和(自身を含む): 63337612800

約数和(自身を除く): 34706140780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1381, 2762, 5524, 6905, 13810, 26239, 27620, 52478, 54559, 104956, 109118, 131195, 218236, 262390, 272795, 524780, 545590, 1036621, 1091180, 2073242, 4146484, 5183105, 10366210, 20732420, 75345979, 150691958, 301383916, 376729895, 753459790, 1431573601, 1506919580, 2863147202, 5726294404, 7157868005, 14315736010, 28631472020]

約数ペア:

[(1, 28631472020), (2, 14315736010), (4, 7157868005), (5, 5726294404), (10, 2863147202), (19, 1506919580), (20, 1431573601), (38, 753459790), (76, 376729895), (95, 301383916), (190, 150691958), (380, 75345979), (1381, 20732420), (2762, 10366210), (5524, 5183105), (6905, 4146484), (13810, 2073242), (26239, 1091180), (27620, 1036621), (52478, 545590), (54559, 524780), (104956, 272795), (109118, 262390), (131195, 218236)]