20178558540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5338243}}^1$

素因数の和:5338268

約数の個数: 96

約数和(自身を含む): 71745999360

約数和(自身を除く): 51567440820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5338243, 10676486, 16014729, 21352972, 26691215, 32029458, 37367701, 48044187, 53382430, 64058916, 74735402, 80073645, 96088374, 106764860, 112103103, 144132561, 149470804, 160147290, 186838505, 192176748, 224206206, 240220935, 288265122, 320294580, 336309309, 373677010, 448412412, 480441870, 560515515, 576530244, 672618618, 720662805, 747354020, 960883740, 1008927927, 1121031030, 1345237236, 1441325610, 1681546545, 2017855854, 2242062060, 2882651220, 3363093090, 4035711708, 5044639635, 6726186180, 10089279270, 20178558540]

約数ペア:

[(1, 20178558540), (2, 10089279270), (3, 6726186180), (4, 5044639635), (5, 4035711708), (6, 3363093090), (7, 2882651220), (9, 2242062060), (10, 2017855854), (12, 1681546545), (14, 1441325610), (15, 1345237236), (18, 1121031030), (20, 1008927927), (21, 960883740), (27, 747354020), (28, 720662805), (30, 672618618), (35, 576530244), (36, 560515515), (42, 480441870), (45, 448412412), (54, 373677010), (60, 336309309), (63, 320294580), (70, 288265122), (84, 240220935), (90, 224206206), (105, 192176748), (108, 186838505), (126, 160147290), (135, 149470804), (140, 144132561), (180, 112103103), (189, 106764860), (210, 96088374), (252, 80073645), (270, 74735402), (315, 64058916), (378, 53382430), (420, 48044187), (540, 37367701), (630, 32029458), (756, 26691215), (945, 21352972), (1260, 16014729), (1890, 10676486), (3780, 5338243)]