19397950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2713}}^1$

素因数の和:2749

約数の個数: 48

約数和(自身を含む): 42403536

約数和(自身を除く): 23005586

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 286, 325, 550, 650, 715, 1430, 2713, 3575, 5426, 7150, 13565, 27130, 29843, 35269, 59686, 67825, 70538, 135650, 149215, 176345, 298430, 352690, 387959, 746075, 775918, 881725, 1492150, 1763450, 1939795, 3879590, 9698975, 19397950]

約数ペア:

[(1, 19397950), (2, 9698975), (5, 3879590), (10, 1939795), (11, 1763450), (13, 1492150), (22, 881725), (25, 775918), (26, 746075), (50, 387959), (55, 352690), (65, 298430), (110, 176345), (130, 149215), (143, 135650), (275, 70538), (286, 67825), (325, 59686), (550, 35269), (650, 29843), (715, 27130), (1430, 13565), (2713, 7150), (3575, 5426)]