20573800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 53043480

約数和(自身を除く): 32469680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 41, 50, 52, 65, 82, 100, 104, 130, 164, 193, 200, 205, 260, 325, 328, 386, 410, 520, 533, 650, 772, 820, 965, 1025, 1066, 1300, 1544, 1640, 1930, 2050, 2132, 2509, 2600, 2665, 3860, 4100, 4264, 4825, 5018, 5330, 7720, 7913, 8200, 9650, 10036, 10660, 12545, 13325, 15826, 19300, 20072, 21320, 25090, 26650, 31652, 38600, 39565, 50180, 53300, 62725, 63304, 79130, 100360, 102869, 106600, 125450, 158260, 197825, 205738, 250900, 316520, 395650, 411476, 501800, 514345, 791300, 822952, 1028690, 1582600, 2057380, 2571725, 4114760, 5143450, 10286900, 20573800]

約数ペア:

[(1, 20573800), (2, 10286900), (4, 5143450), (5, 4114760), (8, 2571725), (10, 2057380), (13, 1582600), (20, 1028690), (25, 822952), (26, 791300), (40, 514345), (41, 501800), (50, 411476), (52, 395650), (65, 316520), (82, 250900), (100, 205738), (104, 197825), (130, 158260), (164, 125450), (193, 106600), (200, 102869), (205, 100360), (260, 79130), (325, 63304), (328, 62725), (386, 53300), (410, 50180), (520, 39565), (533, 38600), (650, 31652), (772, 26650), (820, 25090), (965, 21320), (1025, 20072), (1066, 19300), (1300, 15826), (1544, 13325), (1640, 12545), (1930, 10660), (2050, 10036), (2132, 9650), (2509, 8200), (2600, 7913), (2665, 7720), (3860, 5330), (4100, 5018), (4264, 4825)]