78718880

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21391}}^1$

素因数の和:21429

約数の個数: 48

約数和(自身を含む): 194068224

約数和(自身を除く): 115349344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 21391, 42782, 85564, 106955, 171128, 213910, 342256, 427820, 491993, 684512, 855640, 983986, 1711280, 1967972, 2459965, 3422560, 3935944, 4919930, 7871888, 9839860, 15743776, 19679720, 39359440, 78718880]

約数ペア:

[(1, 78718880), (2, 39359440), (4, 19679720), (5, 15743776), (8, 9839860), (10, 7871888), (16, 4919930), (20, 3935944), (23, 3422560), (32, 2459965), (40, 1967972), (46, 1711280), (80, 983986), (92, 855640), (115, 684512), (160, 491993), (184, 427820), (230, 342256), (368, 213910), (460, 171128), (736, 106955), (920, 85564), (1840, 42782), (3680, 21391)]