31415680

素因数分解:

$2^7\times 5^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:467

約数の個数: 64

約数和(自身を含む): 75790080

約数和(自身を除く): 44374400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 257, 320, 382, 514, 640, 764, 955, 1028, 1285, 1528, 1910, 2056, 2570, 3056, 3820, 4112, 5140, 6112, 7640, 8224, 10280, 12224, 15280, 16448, 20560, 24448, 30560, 32896, 41120, 49087, 61120, 82240, 98174, 122240, 164480, 196348, 245435, 392696, 490870, 785392, 981740, 1570784, 1963480, 3141568, 3926960, 6283136, 7853920, 15707840, 31415680]

約数ペア:

[(1, 31415680), (2, 15707840), (4, 7853920), (5, 6283136), (8, 3926960), (10, 3141568), (16, 1963480), (20, 1570784), (32, 981740), (40, 785392), (64, 490870), (80, 392696), (128, 245435), (160, 196348), (191, 164480), (257, 122240), (320, 98174), (382, 82240), (514, 61120), (640, 49087), (764, 41120), (955, 32896), (1028, 30560), (1285, 24448), (1528, 20560), (1910, 16448), (2056, 15280), (2570, 12224), (3056, 10280), (3820, 8224), (4112, 7640), (5140, 6112)]