20585040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12253}}^1$

素因数の和:12276

約数の個数: 80

約数和(自身を含む): 72935808

約数和(自身を除く): 52350768

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12253, 24506, 36759, 49012, 61265, 73518, 85771, 98024, 122530, 147036, 171542, 183795, 196048, 245060, 257313, 294072, 343084, 367590, 428855, 490120, 514626, 588144, 686168, 735180, 857710, 980240, 1029252, 1286565, 1372336, 1470360, 1715420, 2058504, 2573130, 2940720, 3430840, 4117008, 5146260, 6861680, 10292520, 20585040]

約数ペア:

[(1, 20585040), (2, 10292520), (3, 6861680), (4, 5146260), (5, 4117008), (6, 3430840), (7, 2940720), (8, 2573130), (10, 2058504), (12, 1715420), (14, 1470360), (15, 1372336), (16, 1286565), (20, 1029252), (21, 980240), (24, 857710), (28, 735180), (30, 686168), (35, 588144), (40, 514626), (42, 490120), (48, 428855), (56, 367590), (60, 343084), (70, 294072), (80, 257313), (84, 245060), (105, 196048), (112, 183795), (120, 171542), (140, 147036), (168, 122530), (210, 98024), (240, 85771), (280, 73518), (336, 61265), (420, 49012), (560, 36759), (840, 24506), (1680, 12253)]