861538356

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19993}}^1$

素因数の和:20035

約数の個数: 120

約数和(自身を含む): 2709586880

約数和(自身を除く): 1848048524

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 108, 114, 126, 133, 162, 171, 189, 228, 252, 266, 324, 342, 378, 399, 513, 532, 567, 684, 756, 798, 1026, 1134, 1197, 1539, 1596, 2052, 2268, 2394, 3078, 3591, 4788, 6156, 7182, 10773, 14364, 19993, 21546, 39986, 43092, 59979, 79972, 119958, 139951, 179937, 239916, 279902, 359874, 379867, 419853, 539811, 559804, 719748, 759734, 839706, 1079622, 1139601, 1259559, 1519468, 1619433, 1679412, 2159244, 2279202, 2519118, 2659069, 3238866, 3418803, 3778677, 4558404, 5038236, 5318138, 6477732, 6837606, 7557354, 7977207, 10256409, 10636276, 11336031, 13675212, 15114708, 15954414, 20512818, 22672062, 23931621, 30769227, 31908828, 41025636, 45344124, 47863242, 61538454, 71794863, 95726484, 123076908, 143589726, 215384589, 287179452, 430769178, 861538356]

約数ペア:

[(1, 861538356), (2, 430769178), (3, 287179452), (4, 215384589), (6, 143589726), (7, 123076908), (9, 95726484), (12, 71794863), (14, 61538454), (18, 47863242), (19, 45344124), (21, 41025636), (27, 31908828), (28, 30769227), (36, 23931621), (38, 22672062), (42, 20512818), (54, 15954414), (57, 15114708), (63, 13675212), (76, 11336031), (81, 10636276), (84, 10256409), (108, 7977207), (114, 7557354), (126, 6837606), (133, 6477732), (162, 5318138), (171, 5038236), (189, 4558404), (228, 3778677), (252, 3418803), (266, 3238866), (324, 2659069), (342, 2519118), (378, 2279202), (399, 2159244), (513, 1679412), (532, 1619433), (567, 1519468), (684, 1259559), (756, 1139601), (798, 1079622), (1026, 839706), (1134, 759734), (1197, 719748), (1539, 559804), (1596, 539811), (2052, 419853), (2268, 379867), (2394, 359874), (3078, 279902), (3591, 239916), (4788, 179937), (6156, 139951), (7182, 119958), (10773, 79972), (14364, 59979), (19993, 43092), (21546, 39986)]