155940680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{556931}}^1$

素因数の和:556949

約数の個数: 32

約数和(自身を含む): 400991040

約数和(自身を除く): 245050360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 556931, 1113862, 2227724, 2784655, 3898517, 4455448, 5569310, 7797034, 11138620, 15594068, 19492585, 22277240, 31188136, 38985170, 77970340, 155940680]

約数ペア:

[(1, 155940680), (2, 77970340), (4, 38985170), (5, 31188136), (7, 22277240), (8, 19492585), (10, 15594068), (14, 11138620), (20, 7797034), (28, 5569310), (35, 4455448), (40, 3898517), (56, 2784655), (70, 2227724), (140, 1113862), (280, 556931)]