19396475

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 29521920

約数和(自身を除く): 10125445

約数列:

[1, 5, 7, 23, 25, 35, 61, 79, 115, 161, 175, 305, 395, 427, 553, 575, 805, 1403, 1525, 1817, 1975, 2135, 2765, 4025, 4819, 7015, 9085, 9821, 10675, 12719, 13825, 24095, 33733, 35075, 45425, 49105, 63595, 110837, 120475, 168665, 245525, 317975, 554185, 775859, 843325, 2770925, 3879295, 19396475]

約数ペア:

[(1, 19396475), (5, 3879295), (7, 2770925), (23, 843325), (25, 775859), (35, 554185), (61, 317975), (79, 245525), (115, 168665), (161, 120475), (175, 110837), (305, 63595), (395, 49105), (427, 45425), (553, 35075), (575, 33733), (805, 24095), (1403, 13825), (1525, 12719), (1817, 10675), (1975, 9821), (2135, 9085), (2765, 7015), (4025, 4819)]