21647600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 58767072

約数和(自身を除く): 37119472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 25, 26, 40, 46, 50, 52, 65, 80, 92, 100, 104, 115, 130, 181, 184, 200, 208, 230, 260, 299, 325, 362, 368, 400, 460, 520, 575, 598, 650, 724, 905, 920, 1040, 1150, 1196, 1300, 1448, 1495, 1810, 1840, 2300, 2353, 2392, 2600, 2896, 2990, 3620, 4163, 4525, 4600, 4706, 4784, 5200, 5980, 7240, 7475, 8326, 9050, 9200, 9412, 11765, 11960, 14480, 14950, 16652, 18100, 18824, 20815, 23530, 23920, 29900, 33304, 36200, 37648, 41630, 47060, 54119, 58825, 59800, 66608, 72400, 83260, 94120, 104075, 108238, 117650, 119600, 166520, 188240, 208150, 216476, 235300, 270595, 333040, 416300, 432952, 470600, 541190, 832600, 865904, 941200, 1082380, 1352975, 1665200, 2164760, 2705950, 4329520, 5411900, 10823800, 21647600]

約数ペア:

[(1, 21647600), (2, 10823800), (4, 5411900), (5, 4329520), (8, 2705950), (10, 2164760), (13, 1665200), (16, 1352975), (20, 1082380), (23, 941200), (25, 865904), (26, 832600), (40, 541190), (46, 470600), (50, 432952), (52, 416300), (65, 333040), (80, 270595), (92, 235300), (100, 216476), (104, 208150), (115, 188240), (130, 166520), (181, 119600), (184, 117650), (200, 108238), (208, 104075), (230, 94120), (260, 83260), (299, 72400), (325, 66608), (362, 59800), (368, 58825), (400, 54119), (460, 47060), (520, 41630), (575, 37648), (598, 36200), (650, 33304), (724, 29900), (905, 23920), (920, 23530), (1040, 20815), (1150, 18824), (1196, 18100), (1300, 16652), (1448, 14950), (1495, 14480), (1810, 11960), (1840, 11765), (2300, 9412), (2353, 9200), (2392, 9050), (2600, 8326), (2896, 7475), (2990, 7240), (3620, 5980), (4163, 5200), (4525, 4784), (4600, 4706)]