20085945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 17930055

約数列:

[1, 3, 5, 11, 15, 19, 33, 43, 55, 57, 95, 129, 149, 165, 209, 215, 285, 447, 473, 627, 645, 745, 817, 1045, 1419, 1639, 2235, 2365, 2451, 2831, 3135, 4085, 4917, 6407, 7095, 8195, 8493, 8987, 12255, 14155, 19221, 24585, 26961, 31141, 32035, 42465, 44935, 70477, 93423, 96105, 121733, 134805, 155705, 211431, 352385, 365199, 467115, 608665, 1057155, 1339063, 1825995, 4017189, 6695315, 20085945]

約数ペア:

[(1, 20085945), (3, 6695315), (5, 4017189), (11, 1825995), (15, 1339063), (19, 1057155), (33, 608665), (43, 467115), (55, 365199), (57, 352385), (95, 211431), (129, 155705), (149, 134805), (165, 121733), (209, 96105), (215, 93423), (285, 70477), (447, 44935), (473, 42465), (627, 32035), (645, 31141), (745, 26961), (817, 24585), (1045, 19221), (1419, 14155), (1639, 12255), (2235, 8987), (2365, 8493), (2451, 8195), (2831, 7095), (3135, 6407), (4085, 4917)]