8209990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 15418656

約数和(自身を除く): 7208666

約数列:

[1, 2, 5, 10, 43, 61, 86, 122, 215, 305, 313, 430, 610, 626, 1565, 2623, 3130, 5246, 13115, 13459, 19093, 26230, 26918, 38186, 67295, 95465, 134590, 190930, 820999, 1641998, 4104995, 8209990]

約数ペア:

[(1, 8209990), (2, 4104995), (5, 1641998), (10, 820999), (43, 190930), (61, 134590), (86, 95465), (122, 67295), (215, 38186), (305, 26918), (313, 26230), (430, 19093), (610, 13459), (626, 13115), (1565, 5246), (2623, 3130)]