21768320

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:182

約数の個数: 128

約数和(自身を含む): 61395840

約数和(自身を除く): 39627520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 113, 128, 140, 160, 172, 215, 224, 226, 280, 301, 320, 344, 430, 448, 452, 560, 565, 602, 640, 688, 791, 860, 896, 904, 1120, 1130, 1204, 1376, 1505, 1582, 1720, 1808, 2240, 2260, 2408, 2752, 3010, 3164, 3440, 3616, 3955, 4480, 4520, 4816, 4859, 5504, 6020, 6328, 6880, 7232, 7910, 9040, 9632, 9718, 12040, 12656, 13760, 14464, 15820, 18080, 19264, 19436, 24080, 24295, 25312, 27520, 31640, 34013, 36160, 38528, 38872, 48160, 48590, 50624, 63280, 68026, 72320, 77744, 96320, 97180, 101248, 126560, 136052, 155488, 170065, 192640, 194360, 253120, 272104, 310976, 340130, 388720, 506240, 544208, 621952, 680260, 777440, 1088416, 1360520, 1554880, 2176832, 2721040, 3109760, 4353664, 5442080, 10884160, 21768320]

約数ペア:

[(1, 21768320), (2, 10884160), (4, 5442080), (5, 4353664), (7, 3109760), (8, 2721040), (10, 2176832), (14, 1554880), (16, 1360520), (20, 1088416), (28, 777440), (32, 680260), (35, 621952), (40, 544208), (43, 506240), (56, 388720), (64, 340130), (70, 310976), (80, 272104), (86, 253120), (112, 194360), (113, 192640), (128, 170065), (140, 155488), (160, 136052), (172, 126560), (215, 101248), (224, 97180), (226, 96320), (280, 77744), (301, 72320), (320, 68026), (344, 63280), (430, 50624), (448, 48590), (452, 48160), (560, 38872), (565, 38528), (602, 36160), (640, 34013), (688, 31640), (791, 27520), (860, 25312), (896, 24295), (904, 24080), (1120, 19436), (1130, 19264), (1204, 18080), (1376, 15820), (1505, 14464), (1582, 13760), (1720, 12656), (1808, 12040), (2240, 9718), (2260, 9632), (2408, 9040), (2752, 7910), (3010, 7232), (3164, 6880), (3440, 6328), (3616, 6020), (3955, 5504), (4480, 4859), (4520, 4816)]