20312156956

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{75511}}^1$

素因数の和:76274

約数の個数: 48

約数和(自身を含む): 43809041920

約数和(自身を除く): 23496884964

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 739, 1478, 2956, 5173, 9607, 10346, 19214, 20692, 38428, 67249, 75511, 134498, 151022, 268996, 302044, 528577, 981643, 1057154, 1963286, 2114308, 3926572, 6871501, 13743002, 27486004, 55802629, 111605258, 223210516, 390618403, 725434177, 781236806, 1450868354, 1562473612, 2901736708, 5078039239, 10156078478, 20312156956]

約数ペア:

[(1, 20312156956), (2, 10156078478), (4, 5078039239), (7, 2901736708), (13, 1562473612), (14, 1450868354), (26, 781236806), (28, 725434177), (52, 390618403), (91, 223210516), (182, 111605258), (364, 55802629), (739, 27486004), (1478, 13743002), (2956, 6871501), (5173, 3926572), (9607, 2114308), (10346, 1963286), (19214, 1057154), (20692, 981643), (38428, 528577), (67249, 302044), (75511, 268996), (134498, 151022)]