20160

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1$

素因数の和:30

約数の個数: 84

約数和(自身を含む): 79248

約数和(自身を除く): 59088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 20160]

約数ペア:

[(1, 20160), (2, 10080), (3, 6720), (4, 5040), (5, 4032), (6, 3360), (7, 2880), (8, 2520), (9, 2240), (10, 2016), (12, 1680), (14, 1440), (15, 1344), (16, 1260), (18, 1120), (20, 1008), (21, 960), (24, 840), (28, 720), (30, 672), (32, 630), (35, 576), (36, 560), (40, 504), (42, 480), (45, 448), (48, 420), (56, 360), (60, 336), (63, 320), (64, 315), (70, 288), (72, 280), (80, 252), (84, 240), (90, 224), (96, 210), (105, 192), (112, 180), (120, 168), (126, 160), (140, 144)]