21862880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:508

約数の個数: 96

約数和(自身を含む): 58169664

約数和(自身を除く): 36306784

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 368, 416, 457, 460, 520, 598, 736, 914, 920, 1040, 1196, 1495, 1828, 1840, 2080, 2285, 2392, 2990, 3656, 3680, 4570, 4784, 5941, 5980, 7312, 9140, 9568, 10511, 11882, 11960, 14624, 18280, 21022, 23764, 23920, 29705, 36560, 42044, 47528, 47840, 52555, 59410, 73120, 84088, 95056, 105110, 118820, 136643, 168176, 190112, 210220, 237640, 273286, 336352, 420440, 475280, 546572, 683215, 840880, 950560, 1093144, 1366430, 1681760, 2186288, 2732860, 4372576, 5465720, 10931440, 21862880]

約数ペア:

[(1, 21862880), (2, 10931440), (4, 5465720), (5, 4372576), (8, 2732860), (10, 2186288), (13, 1681760), (16, 1366430), (20, 1093144), (23, 950560), (26, 840880), (32, 683215), (40, 546572), (46, 475280), (52, 420440), (65, 336352), (80, 273286), (92, 237640), (104, 210220), (115, 190112), (130, 168176), (160, 136643), (184, 118820), (208, 105110), (230, 95056), (260, 84088), (299, 73120), (368, 59410), (416, 52555), (457, 47840), (460, 47528), (520, 42044), (598, 36560), (736, 29705), (914, 23920), (920, 23764), (1040, 21022), (1196, 18280), (1495, 14624), (1828, 11960), (1840, 11882), (2080, 10511), (2285, 9568), (2392, 9140), (2990, 7312), (3656, 5980), (3680, 5941), (4570, 4784)]