20015550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2341}}^1$

素因数の和:2378

約数の個数: 72

約数和(自身を含む): 56629560

約数和(自身を除く): 36614010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 38, 45, 50, 57, 75, 90, 95, 114, 150, 171, 190, 225, 285, 342, 450, 475, 570, 855, 950, 1425, 1710, 2341, 2850, 4275, 4682, 7023, 8550, 11705, 14046, 21069, 23410, 35115, 42138, 44479, 58525, 70230, 88958, 105345, 117050, 133437, 175575, 210690, 222395, 266874, 351150, 400311, 444790, 526725, 667185, 800622, 1053450, 1111975, 1334370, 2001555, 2223950, 3335925, 4003110, 6671850, 10007775, 20015550]

約数ペア:

[(1, 20015550), (2, 10007775), (3, 6671850), (5, 4003110), (6, 3335925), (9, 2223950), (10, 2001555), (15, 1334370), (18, 1111975), (19, 1053450), (25, 800622), (30, 667185), (38, 526725), (45, 444790), (50, 400311), (57, 351150), (75, 266874), (90, 222395), (95, 210690), (114, 175575), (150, 133437), (171, 117050), (190, 105345), (225, 88958), (285, 70230), (342, 58525), (450, 44479), (475, 42138), (570, 35115), (855, 23410), (950, 21069), (1425, 14046), (1710, 11705), (2341, 8550), (2850, 7023), (4275, 4682)]