19982600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 52496640

約数和(自身を除く): 32514040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 31, 40, 44, 50, 55, 62, 88, 100, 110, 124, 155, 200, 220, 248, 275, 293, 310, 341, 440, 550, 586, 620, 682, 775, 1100, 1172, 1240, 1364, 1465, 1550, 1705, 2200, 2344, 2728, 2930, 3100, 3223, 3410, 5860, 6200, 6446, 6820, 7325, 8525, 9083, 11720, 12892, 13640, 14650, 16115, 17050, 18166, 25784, 29300, 32230, 34100, 36332, 45415, 58600, 64460, 68200, 72664, 80575, 90830, 99913, 128920, 161150, 181660, 199826, 227075, 322300, 363320, 399652, 454150, 499565, 644600, 799304, 908300, 999130, 1816600, 1998260, 2497825, 3996520, 4995650, 9991300, 19982600]

約数ペア:

[(1, 19982600), (2, 9991300), (4, 4995650), (5, 3996520), (8, 2497825), (10, 1998260), (11, 1816600), (20, 999130), (22, 908300), (25, 799304), (31, 644600), (40, 499565), (44, 454150), (50, 399652), (55, 363320), (62, 322300), (88, 227075), (100, 199826), (110, 181660), (124, 161150), (155, 128920), (200, 99913), (220, 90830), (248, 80575), (275, 72664), (293, 68200), (310, 64460), (341, 58600), (440, 45415), (550, 36332), (586, 34100), (620, 32230), (682, 29300), (775, 25784), (1100, 18166), (1172, 17050), (1240, 16115), (1364, 14650), (1465, 13640), (1550, 12892), (1705, 11720), (2200, 9083), (2344, 8525), (2728, 7325), (2930, 6820), (3100, 6446), (3223, 6200), (3410, 5860)]