20425230

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 63452160

約数和(自身を除く): 43026930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 101, 105, 107, 126, 135, 189, 202, 210, 214, 270, 303, 315, 321, 378, 505, 535, 606, 630, 642, 707, 749, 909, 945, 963, 1010, 1070, 1414, 1498, 1515, 1605, 1818, 1890, 1926, 2121, 2247, 2727, 2889, 3030, 3210, 3535, 3745, 4242, 4494, 4545, 4815, 5454, 5778, 6363, 6741, 7070, 7490, 9090, 9630, 10605, 10807, 11235, 12726, 13482, 13635, 14445, 19089, 20223, 21210, 21614, 22470, 27270, 28890, 31815, 32421, 33705, 38178, 40446, 54035, 63630, 64842, 67410, 75649, 95445, 97263, 101115, 108070, 151298, 162105, 190890, 194526, 202230, 226947, 291789, 324210, 378245, 453894, 486315, 583578, 680841, 756490, 972630, 1134735, 1361682, 1458945, 2042523, 2269470, 2917890, 3404205, 4085046, 6808410, 10212615, 20425230]

約数ペア:

[(1, 20425230), (2, 10212615), (3, 6808410), (5, 4085046), (6, 3404205), (7, 2917890), (9, 2269470), (10, 2042523), (14, 1458945), (15, 1361682), (18, 1134735), (21, 972630), (27, 756490), (30, 680841), (35, 583578), (42, 486315), (45, 453894), (54, 378245), (63, 324210), (70, 291789), (90, 226947), (101, 202230), (105, 194526), (107, 190890), (126, 162105), (135, 151298), (189, 108070), (202, 101115), (210, 97263), (214, 95445), (270, 75649), (303, 67410), (315, 64842), (321, 63630), (378, 54035), (505, 40446), (535, 38178), (606, 33705), (630, 32421), (642, 31815), (707, 28890), (749, 27270), (909, 22470), (945, 21614), (963, 21210), (1010, 20223), (1070, 19089), (1414, 14445), (1498, 13635), (1515, 13482), (1605, 12726), (1818, 11235), (1890, 10807), (1926, 10605), (2121, 9630), (2247, 9090), (2727, 7490), (2889, 7070), (3030, 6741), (3210, 6363), (3535, 5778), (3745, 5454), (4242, 4815), (4494, 4545)]