25188660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19991}}^1$

素因数の和:20013

約数の個数: 72

約数和(自身を含む): 87325056

約数和(自身を除く): 62136396

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, 19991, 39982, 59973, 79964, 99955, 119946, 139937, 179919, 199910, 239892, 279874, 299865, 359838, 399820, 419811, 559748, 599730, 699685, 719676, 839622, 899595, 1199460, 1259433, 1399370, 1679244, 1799190, 2099055, 2518866, 2798740, 3598380, 4198110, 5037732, 6297165, 8396220, 12594330, 25188660]

約数ペア:

[(1, 25188660), (2, 12594330), (3, 8396220), (4, 6297165), (5, 5037732), (6, 4198110), (7, 3598380), (9, 2798740), (10, 2518866), (12, 2099055), (14, 1799190), (15, 1679244), (18, 1399370), (20, 1259433), (21, 1199460), (28, 899595), (30, 839622), (35, 719676), (36, 699685), (42, 599730), (45, 559748), (60, 419811), (63, 399820), (70, 359838), (84, 299865), (90, 279874), (105, 239892), (126, 199910), (140, 179919), (180, 139937), (210, 119946), (252, 99955), (315, 79964), (420, 59973), (630, 39982), (1260, 19991)]