211027840

素因数分解:

$2^7\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1283}}^1$

素因数の和:1559

約数の個数: 64

約数和(自身を含む): 506846160

約数和(自身を除く): 295818320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 257, 320, 514, 640, 1028, 1283, 1285, 2056, 2566, 2570, 4112, 5132, 5140, 6415, 8224, 10264, 10280, 12830, 16448, 20528, 20560, 25660, 32896, 41056, 41120, 51320, 82112, 82240, 102640, 164224, 164480, 205280, 329731, 410560, 659462, 821120, 1318924, 1648655, 2637848, 3297310, 5275696, 6594620, 10551392, 13189240, 21102784, 26378480, 42205568, 52756960, 105513920, 211027840]

約数ペア:

[(1, 211027840), (2, 105513920), (4, 52756960), (5, 42205568), (8, 26378480), (10, 21102784), (16, 13189240), (20, 10551392), (32, 6594620), (40, 5275696), (64, 3297310), (80, 2637848), (128, 1648655), (160, 1318924), (257, 821120), (320, 659462), (514, 410560), (640, 329731), (1028, 205280), (1283, 164480), (1285, 164224), (2056, 102640), (2566, 82240), (2570, 82112), (4112, 51320), (5132, 41120), (5140, 41056), (6415, 32896), (8224, 25660), (10264, 20560), (10280, 20528), (12830, 16448)]