990447984

素因数分解:

$2^4\times 3^2\times {\mathrm{163}}^1\times {\mathrm{42197}}^1$

素因数の和:42374

約数の個数: 60

約数和(自身を含む): 2788950216

約数和(自身を除く): 1798502232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 163, 326, 489, 652, 978, 1304, 1467, 1956, 2608, 2934, 3912, 5868, 7824, 11736, 23472, 42197, 84394, 126591, 168788, 253182, 337576, 379773, 506364, 675152, 759546, 1012728, 1519092, 2025456, 3038184, 6076368, 6878111, 13756222, 20634333, 27512444, 41268666, 55024888, 61902999, 82537332, 110049776, 123805998, 165074664, 247611996, 330149328, 495223992, 990447984]

約数ペア:

[(1, 990447984), (2, 495223992), (3, 330149328), (4, 247611996), (6, 165074664), (8, 123805998), (9, 110049776), (12, 82537332), (16, 61902999), (18, 55024888), (24, 41268666), (36, 27512444), (48, 20634333), (72, 13756222), (144, 6878111), (163, 6076368), (326, 3038184), (489, 2025456), (652, 1519092), (978, 1012728), (1304, 759546), (1467, 675152), (1956, 506364), (2608, 379773), (2934, 337576), (3912, 253182), (5868, 168788), (7824, 126591), (11736, 84394), (23472, 42197)]