19566560

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:460

約数の個数: 96

約数和(自身を含む): 52073280

約数和(自身を除く): 32506720

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, 409, 416, 460, 520, 598, 736, 818, 920, 1040, 1196, 1495, 1636, 1840, 2045, 2080, 2392, 2990, 3272, 3680, 4090, 4784, 5317, 5980, 6544, 8180, 9407, 9568, 10634, 11960, 13088, 16360, 18814, 21268, 23920, 26585, 32720, 37628, 42536, 47035, 47840, 53170, 65440, 75256, 85072, 94070, 106340, 122291, 150512, 170144, 188140, 212680, 244582, 301024, 376280, 425360, 489164, 611455, 752560, 850720, 978328, 1222910, 1505120, 1956656, 2445820, 3913312, 4891640, 9783280, 19566560]

約数ペア:

[(1, 19566560), (2, 9783280), (4, 4891640), (5, 3913312), (8, 2445820), (10, 1956656), (13, 1505120), (16, 1222910), (20, 978328), (23, 850720), (26, 752560), (32, 611455), (40, 489164), (46, 425360), (52, 376280), (65, 301024), (80, 244582), (92, 212680), (104, 188140), (115, 170144), (130, 150512), (160, 122291), (184, 106340), (208, 94070), (230, 85072), (260, 75256), (299, 65440), (368, 53170), (409, 47840), (416, 47035), (460, 42536), (520, 37628), (598, 32720), (736, 26585), (818, 23920), (920, 21268), (1040, 18814), (1196, 16360), (1495, 13088), (1636, 11960), (1840, 10634), (2045, 9568), (2080, 9407), (2392, 8180), (2990, 6544), (3272, 5980), (3680, 5317), (4090, 4784)]