20148660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15991}}^1$

素因数の和:16013

約数の個数: 72

約数和(自身を含む): 69853056

約数和(自身を除く): 49704396

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, 15991, 31982, 47973, 63964, 79955, 95946, 111937, 143919, 159910, 191892, 223874, 239865, 287838, 319820, 335811, 447748, 479730, 559685, 575676, 671622, 719595, 959460, 1007433, 1119370, 1343244, 1439190, 1679055, 2014866, 2238740, 2878380, 3358110, 4029732, 5037165, 6716220, 10074330, 20148660]

約数ペア:

[(1, 20148660), (2, 10074330), (3, 6716220), (4, 5037165), (5, 4029732), (6, 3358110), (7, 2878380), (9, 2238740), (10, 2014866), (12, 1679055), (14, 1439190), (15, 1343244), (18, 1119370), (20, 1007433), (21, 959460), (28, 719595), (30, 671622), (35, 575676), (36, 559685), (42, 479730), (45, 447748), (60, 335811), (63, 319820), (70, 287838), (84, 239865), (90, 223874), (105, 191892), (126, 159910), (140, 143919), (180, 111937), (210, 95946), (252, 79955), (315, 63964), (420, 47973), (630, 31982), (1260, 15991)]