20352480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:516

約数の個数: 96

約数和(自身を含む): 64864800

約数和(自身を除く): 44512320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 109, 120, 160, 218, 240, 327, 389, 436, 480, 545, 654, 778, 872, 1090, 1167, 1308, 1556, 1635, 1744, 1945, 2180, 2334, 2616, 3112, 3270, 3488, 3890, 4360, 4668, 5232, 5835, 6224, 6540, 7780, 8720, 9336, 10464, 11670, 12448, 13080, 15560, 17440, 18672, 23340, 26160, 31120, 37344, 42401, 46680, 52320, 62240, 84802, 93360, 127203, 169604, 186720, 212005, 254406, 339208, 424010, 508812, 636015, 678416, 848020, 1017624, 1272030, 1356832, 1696040, 2035248, 2544060, 3392080, 4070496, 5088120, 6784160, 10176240, 20352480]

約数ペア:

[(1, 20352480), (2, 10176240), (3, 6784160), (4, 5088120), (5, 4070496), (6, 3392080), (8, 2544060), (10, 2035248), (12, 1696040), (15, 1356832), (16, 1272030), (20, 1017624), (24, 848020), (30, 678416), (32, 636015), (40, 508812), (48, 424010), (60, 339208), (80, 254406), (96, 212005), (109, 186720), (120, 169604), (160, 127203), (218, 93360), (240, 84802), (327, 62240), (389, 52320), (436, 46680), (480, 42401), (545, 37344), (654, 31120), (778, 26160), (872, 23340), (1090, 18672), (1167, 17440), (1308, 15560), (1556, 13080), (1635, 12448), (1744, 11670), (1945, 10464), (2180, 9336), (2334, 8720), (2616, 7780), (3112, 6540), (3270, 6224), (3488, 5835), (3890, 5232), (4360, 4668)]