20020140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15889}}^1$

素因数の和:15911

約数の個数: 72

約数和(自身を含む): 69407520

約数和(自身を除く): 49387380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15889, 31778, 47667, 63556, 79445, 95334, 111223, 143001, 158890, 190668, 222446, 238335, 286002, 317780, 333669, 444892, 476670, 556115, 572004, 667338, 715005, 953340, 1001007, 1112230, 1334676, 1430010, 1668345, 2002014, 2224460, 2860020, 3336690, 4004028, 5005035, 6673380, 10010070, 20020140]

約数ペア:

[(1, 20020140), (2, 10010070), (3, 6673380), (4, 5005035), (5, 4004028), (6, 3336690), (7, 2860020), (9, 2224460), (10, 2002014), (12, 1668345), (14, 1430010), (15, 1334676), (18, 1112230), (20, 1001007), (21, 953340), (28, 715005), (30, 667338), (35, 572004), (36, 556115), (42, 476670), (45, 444892), (60, 333669), (63, 317780), (70, 286002), (84, 238335), (90, 222446), (105, 190668), (126, 158890), (140, 143001), (180, 111223), (210, 95334), (252, 79445), (315, 63556), (420, 47667), (630, 31778), (1260, 15889)]