20686680

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8209}}^1$

素因数の和:8233

約数の個数: 96

約数和(自身を含む): 76845600

約数和(自身を除く): 56158920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8209, 16418, 24627, 32836, 41045, 49254, 57463, 65672, 73881, 82090, 98508, 114926, 123135, 147762, 164180, 172389, 197016, 229852, 246270, 287315, 295524, 328360, 344778, 369405, 459704, 492540, 517167, 574630, 591048, 689556, 738810, 861945, 985080, 1034334, 1149260, 1379112, 1477620, 1723890, 2068668, 2298520, 2585835, 2955240, 3447780, 4137336, 5171670, 6895560, 10343340, 20686680]

約数ペア:

[(1, 20686680), (2, 10343340), (3, 6895560), (4, 5171670), (5, 4137336), (6, 3447780), (7, 2955240), (8, 2585835), (9, 2298520), (10, 2068668), (12, 1723890), (14, 1477620), (15, 1379112), (18, 1149260), (20, 1034334), (21, 985080), (24, 861945), (28, 738810), (30, 689556), (35, 591048), (36, 574630), (40, 517167), (42, 492540), (45, 459704), (56, 369405), (60, 344778), (63, 328360), (70, 295524), (72, 287315), (84, 246270), (90, 229852), (105, 197016), (120, 172389), (126, 164180), (140, 147762), (168, 123135), (180, 114926), (210, 98508), (252, 82090), (280, 73881), (315, 65672), (360, 57463), (420, 49254), (504, 41045), (630, 32836), (840, 24627), (1260, 16418), (2520, 8209)]