721073444

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{27901}}^1$

素因数の和:27996

約数の個数: 48

約数和(自身を含む): 1575012096

約数和(自身を除く): 853938652

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 497, 923, 994, 1846, 1988, 3692, 6461, 12922, 25844, 27901, 55802, 111604, 195307, 362713, 390614, 725426, 781228, 1450852, 1980971, 2538991, 3961942, 5077982, 7923884, 10155964, 13866797, 25752623, 27733594, 51505246, 55467188, 103010492, 180268361, 360536722, 721073444]

約数ペア:

[(1, 721073444), (2, 360536722), (4, 180268361), (7, 103010492), (13, 55467188), (14, 51505246), (26, 27733594), (28, 25752623), (52, 13866797), (71, 10155964), (91, 7923884), (142, 5077982), (182, 3961942), (284, 2538991), (364, 1980971), (497, 1450852), (923, 781228), (994, 725426), (1846, 390614), (1988, 362713), (3692, 195307), (6461, 111604), (12922, 55802), (25844, 27901)]